khoahoc.vietjack.com
Kích hoạt VIP
Tạo VIP

Danh sách câu hỏi ( Có 2,406,216 câu hỏi trên 48,125 trang )

Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Cho phản ứng sau: CnH2n+KMnO4+H2O→CnH2nOH2+KOH+MnO2 Tổng hệ số (nguyên, tối giản) của các chất trong phương trình phản ứng trên là

Hóa học Tốt nghiệp THPT
Xem chi tiết 816 lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Trong các hệ sinh thái, khi chuyển từ bậc dinh dưỡng thấp lên bậc dinh dưỡng cao liền kề, trung bình năng lượng thất thoát tới 90%, trong đó có khoảng 70% năng lượng bị tiêu hao do:

Sinh học Tốt nghiệp THPT
Xem chi tiết 1.7 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes. In the first form, known as primary cooperation, group and individual fuse. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group and task performed. Means and goals become one, for cooperation itself is valued. While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modem societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration, Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation. In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic: the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals: it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship. Which of the following statements about primary cooperation is supported by information in the passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 414 lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Cặp nhân tố tiến hoá nào sau đây có thể làm xuất hiện các alen mới trong quần thể sinh vật?

Sinh học Tốt nghiệp THPT
Xem chi tiết 774 lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Cho ancol benzylic, p- crezol, axit glutamic, este của glyxin với ancol etylic, natri phenolat lần lượt tác dụng với từng chất: NaOH, HCl, ancol metylic. Số cặp chất phản ứng được với nhau trong điều kiện thích hợp là

Hóa học Tốt nghiệp THPT
Xem chi tiết 3.4 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com)Which of the following statement is TRUE about silence according to paragraph 5?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. I don’t have enough money; otherwise, I would buy that bag.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 10.6 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Khi thủy phân một triglixerit X, thu được các axit béo gồm axit oleic, axit panmitic, axit stearic. Thể tích khí O2 (đktc) cần để đốt cháy hoàn toàn 8,6 gam X là

Hóa học Tốt nghiệp THPT
Xem chi tiết 396 lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Trong lịch sử phát triển của sinh vật trên Trái Đất, loài người xuất hiện ở:

Sinh học Tốt nghiệp THPT
Xem chi tiết 576 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes. In the first form, known as primary cooperation, group and individual fuse. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group and task performed. Means and goals become one, for cooperation itself is valued. While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modem societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration, Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation. In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic: the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals: it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship. The word “cherished” in paragraph 1 is closest in meaning to______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 731 lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Khi nói mối quan hệ giữa sinh vật chủ - sinh vật kí sinh và mối quan hệ con mồi - sinh vật ăn thịt, phát biểu nào sau đây đúng?

Sinh học Tốt nghiệp THPT
Xem chi tiết 867 lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Cho các phát sau: (1) Phản ứng thủy phân este tạo bởi axit và ancol trong môi trường axit là phản ứng thuận nghịch. (2) Các triglixerit đều có phản ứng cộng hiđro. (3) Phản ứng thủy phân chất béo trong môi trường kiềm là phản ứng một chiều. (4) HCHO và HCOOH đều tham gia phản ứng tráng bạc. (5) CH3OH, C2H5OH đều tan vô hạn trong nước. (6) Các este thường dễ tan trong nước và có mùi thơm dễ chịu Số phát biểu đúng là

Hóa học Tốt nghiệp THPT
Xem chi tiết 8.3 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. “Why don’t you have your room repainted?” said Bob to Linda.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 30.1 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com)Which of the following is NOT mentioned as types of official clothes?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes. In the first form, known as primary cooperation, group and individual fuse. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group and task performed. Means and goals become one, for cooperation itself is valued. While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modem societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration, Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation. In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic: the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals: it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship. What is the author’s main purpose in the first paragraph of the passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.4 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Khi nói đến cấu tạo, chức năng của các bào quan trong tế bào, có bao nhiêu phát biểu sau đây đúng?    I. Trong tế bào, bào quan có không có vật chất di truyền là lục lạp.    II. Ti thể là bào quan giữ chức năng cung cấp nguồn năng lượng chủ yếu của tế bào.    III. Trung thể là bào quan chỉ có ở tế bào động vật không có ở tế bào thực vật.    IV. Grana là cấu trúc có trong bào quan ti thể.

Sinh học Tốt nghiệp THPT
Xem chi tiết 1.3 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com) Which of the following is considered as a positive sign ofbody language at a job interview? 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.5 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. No one has sent me that letter.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 20.8 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. According to the passage, copyright law is________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Cho các chất sau: HO-CH2-CH2-OH, C6H5-CH=CH2, C6H5CH3, CH2=CH-CH=CH2, CH3-CH=CH2, H2N-CH2­-COOH và C2H6. Số chất có khả năng trùng hợp để tạo polime là

Hóa học Tốt nghiệp THPT
Xem chi tiết 2 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Khi nghiên cứu về chim cánh cụt, người ta phát hiện thấy: Loài chim cánh cụt có kích thước lớn nhất dài 1,2m, nặng 34 kg (loài1), loài chim cánh cụt có kích thước nhỏ nhất chỉ dài 50cm, nặng 4-5kg (loài2). Hãy dự đoán nơi sống của 2 loài chim này?

Sinh học Tốt nghiệp THPT
Xem chi tiết 3.5 K lượt xem 6 năm trước
Tổng hợp đề ôn luyện Sinh Học thi THPTQG cực hay có đáp án (Đề số 9)

Thực chất quy luật phân li độc lập của MenĐen là:

Sinh học Tốt nghiệp THPT
Xem chi tiết 0.9 K lượt xem 6 năm trước
Đề thi Học Kì 2 môn hóa lớp 12 cực hay có lời giải (Đề số 2)

Hai chất nào sau đây đều tan tốt trong nước:

Hóa học Tốt nghiệp THPT
Xem chi tiết 6.1 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Loại tơ không phải tơ tổng hợp là

Hóa học Tốt nghiệp THPT
Xem chi tiết 525 lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Khi nói về quần xã sinh vật, phát biểu nào sau đây không đúng?

Sinh học Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.         In the early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. What is the topic of this passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.9 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com) The word “them" in paragraph 5 refers to _____________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.4 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Chất không tồn tại ở trạng thái khí là

Hóa học Tốt nghiệp THPT
Xem chi tiết 1.1 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Cho các polime sau: (1) polietilen, (2) poli(metylmetacrylat), (3) polibutađien, (4) polistiren, (5) poli(vinyl axetat), (6) tơ nilon-6,6. Dãy gồm các polime bị thủy phân trong dung dịch axit và trong dung dịch kiềm là

Hóa học Tốt nghiệp THPT
Xem chi tiết 2 K lượt xem 6 năm trước
Đề thi Học Kì 2 môn hóa lớp 12 cực hay có lời giải (Đề số 2)

Thủy phân este có công thức phân tử C4H8O2 trong môi trường axit thu được 2 sản phẩm hữu cơ X và Y (chứa C, H, O). Biết Y có thể được tạo ra từ quá trình oxi hóa X ở điều kiện thích hợp. Cấu tạo của X là:

Hóa học Tốt nghiệp THPT
Xem chi tiết 13.1 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Quá trình sinh tổng hợp protein được gọi là dịch mã vì?

Sinh học Tốt nghiệp THPT
Xem chi tiết 797 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. The word “they” in paragraph 3 refer to_______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 510 lượt xem 6 năm trước
Tổng hợp đề ôn luyện Sinh Học thi THPTQG cực hay có đáp án (Đề số 9)

Cho biết sản lượng sinh vật toàn phần trong một hệ sinh thái dưới nước là 1113 kcal/m2/ năm. Hiệu suất sinh thái ở sinh vật tiêu thụ bậc 1 là 11,8%, ở sinh vật tiêu thụ bậc 2 là 12,3%. Sản lượng sinh vật toàn phần  của sinh vật tiêu thụ bậc 2 là:

Sinh học Tốt nghiệp THPT
Xem chi tiết 4 K lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Những nhân tố gây biến đổi kích thước của quần thể là

Sinh học Tốt nghiệp THPT
Xem chi tiết 487 lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.         In the early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. The author implies in the passage that the early emigrants

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.6 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Cho dung dịch chứa a mol Ba(HCO3)2 tác dụng với dung dịch có chứa a mol chất tan X. Để thu được khối lượng kết tủa lớn nhất thì X là

Hóa học Tốt nghiệp THPT
Xem chi tiết 1.1 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Khi nói về thành phần cấu tạo của gen cấu trúc, phát biểu nào sau đây là đúng?

Sinh học Tốt nghiệp THPT
Xem chi tiết 727 lượt xem 6 năm trước
Đề thi Học Kì 2 môn hóa lớp 12 cực hay có lời giải (Đề số 2)

Cho các chất C6H5OH(X), C6H5NH2(Y), CH3NH2(Z) và HCOOCH3 (T). Chất không làm đổi màu quì tím là:

Hóa học Tốt nghiệp THPT
Xem chi tiết 525 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com) The word “engage” in paragraph 2 is closest in meaning to ____________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.9 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. The phrase “infringing upon” in paragraph 4 is closest in meaning to_______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.1 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Số amin bậc hai và bậc ba có công thức phân tử C4H11N là

Hóa học Tốt nghiệp THPT
Xem chi tiết 1.3 K lượt xem 6 năm trước
Tổng hợp đề ôn luyện Sinh Học thi THPTQG cực hay có đáp án (Đề số 9)

Ở người, bệnh bạch tạng do gen lặn nằm trên NST thường quy định, alen trội tương ứng duy định da bình thường. bệnh mù màu đỏ - xanh lục do gen  lặn nằm trên vùng không tương đồng của NST giới tính X quy định, alen trội tương ứng quy định mắt nhìn màu bình thường. Cho sơ đồ phả hệ sau: Biết rằng không có đột biến mới phát sinh ở tất cả các cá thể trong phả hệ. Cặp vợ chồng III.13 –III.14 trong phả hệ sinh một đứa con trai IV.16. Xác suất để đứa con này chỉ mắc một trong hai bệnh này:

Sinh học Tốt nghiệp THPT
Xem chi tiết 4 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 12)

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the questions. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. With which of the following statements is the author most likely to agree?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.7 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Este nào sau đây không được điều chế từ axit cacboxylic và ancol tương ứng

Hóa học Tốt nghiệp THPT
Xem chi tiết 458 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.    Non-verbal communication is a wordless form of communication. It is mainly a silent form of communication that does not involve speech or words. Non-verbal communication is done through eye contact, hand movement, touch, facial expressions, bodily postures and non-lexical components, etc. At times, silence is said to the best form of non-verbal communication.    One example of non-verbal communication is dancing. When we dance, we can express so many different emotions. From passion to religious devotion, dancing either alone, writh another person as part of a couple or in a synchronized group, can communicate so much. Dancing is something that many of us engage in from childhood and it becomes an important way of socializing and expressing ourselves at the same time.    Body language including bodily movement and postures is a language all of its own. Our posture, and the way that we lean forward or back or cross or uncross our legs can speak volumes about us. Very often, we are not even aware that we are communication our thoughts via our body language. That is the reason why, in job interviews and other situations in which we are under scrutiny, it is a good idea to pay attention to our body language. For example, leaning forward can be a sign of positivity, whilst sitting with our arms folded can make us look closed off - as if we have something to hide.    What we wear can often communicate things. For example, if we dress up in academic robes, it is clear that we want to communicate to everyone who sees us that we have attained a certain level of academic achievement. We should never judge people by what they wear - however, some types of official garments (such as a judge’s wig, a scholar’s gown or a soldier’s medal) are designed to communicate something about the wearer.    Silence is also a type of non-verbal communication. Sometimes, staying silent can communicate much more than words can. Silence can be powerful, sad, happy or it can simply communicate to other people that we do not want to engage with them. Good communicators are able to listen, and to use comfortable silences, to connect with other people. There is no need to think that communication is all about words!    Effective communication, as is abundantly clear from the discussion above, involves not just listening to other people’s words and expressing ourselves in words. It also means picking up on other people’s non-verbal cues. Why not go through the list above and think about which forms of non-verbal communication you are adept at understanding. Are there any ways in which you might improve your non-verbal communication skills? We could all benefit from a little improvement in this area, as it enables us to enjoy deeper and more meaningful connections with other people. (Source: http://www.importantindia.com) What does the passage mainly discuss?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 5.9 K lượt xem 6 năm trước
Bài tập đồ thị - Hóa Học cực hay có lời giải nâng cao

Hai ống nghiệm  A và B chứa lần lượt dung dịch ZnSO4 và AlCl3, nhỏ từ từ dung dịch NaOH vào 2 ống nghiệm riêng biệt trên thu được kết quả biểu diễn đồ thị bên dưới Tỷ lệ của a : b là:

Hóa học Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Amin X chứa vòng benzen và có công thức phân tử C8H11N. X tác dụng với HCl tạo thành muối dạng R-NH3Cl. Mặt khác, nếu cho X tác dụng với nước brom thì thu được chất Y có công thức C8H10NBr3. Số công thức cấu tạo của X là

Hóa học Tốt nghiệp THPT
Xem chi tiết 872 lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.         In the early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. In paragraph 3, the phrase “those things” refers to...

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.6 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Nhiều loại bệnh ung thư xuất hiện là do gen tiền ung thư bị đột biến chuyển thành gen ung thư. Khi bị đột biến, gen này hoạt động mạnh hơn và tạo ra quá nhiều sản phẩm làm tăng tốc độ phân bào dẫn đến khối u tăng sinh quá mức mà cơ thể không kiểm soát được. Những gen ung thư loại này thường là

Sinh học Tốt nghiệp THPT
Xem chi tiết 20.7 K lượt xem 6 năm trước
Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 24)

Kim loại có khả năng dẫn điện tốt nhất là?

Hóa học Tốt nghiệp THPT
Xem chi tiết 502 lượt xem 6 năm trước

Đăng ký

Bạn đã có tài khoản?

CÔNG TY TNHH ĐẦU TƯ VÀ DỊCH VỤ GIÁO DỤC VIETJACK
Giấy chứng nhận ĐKKD số: 0108307822 do Sở KH & ĐT TP Hà Nội cấp lần đầu ngày 04/06/2018
© 2017 Vietjack37. All Rights Reserved.
zalo Nhắn tin Zalo Hỏi bài tập