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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Có bao nhiêu phần tử của tập hợp \(A = \{ x|x \in \mathbb{Z},81 \le \left| {{x^2}} \right| \le 144\)}??

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Cho các dãy số sau cho biết căn bậc hai của chúng lần lượt là những số nào? 144; 25; 100; 81; 49

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Đâu không phải là số thập phân vô hạn tuần hoàn?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Cho một sợi dây dài 23 cm người ta muốn cắt ra thành những sợi dây ngắn hơn dài 3cm, hỏi sau khi cắt cắt được bao nhiêu sợi dây và sợi dây thừa ra dài khoảng bao nhiêu cm

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Số nào dưới đây bằng 32?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Nhìn thật nhanh xem đâu là số thập phân hữu hạn?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Xác định tất cả giá trị của x để \(\left| {{x^2}} \right| = 25\)?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Sử dụng máy tính cầm tay tính \(4\sqrt {27} \)và làm tròn đến chữ số thập phân thứ ba?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Làm tròn số thập phân 3,4256…với độ chính xác là 0,005?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Cho tập hợp A viết tập hợp B là tập con của A chỉ chứa các số hữu tỉ? A = {4,2; 2,(531);\(\sqrt {10} \); \(2\frac{1}{3}\); \( - \sqrt {\frac{9}{4}} \)}

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Cạnh của mặt bàn bằng bao nhiêu, biết mặt bàn hình vuông có diện tích bằng 250 dm2?

Toán Lớp 7
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Trắc nghiệm Bài tập cuối chương II lớp 7 (có đáp án - phần 1)

Số nào sau đây là số thập phân vô hạn tuần hoàn?

Toán Lớp 7
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Chuyên đề 4 : Reading có đáp án

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.       Long ago a lot of people (1)                     the moon was a god. Other people thought it was just a light in the sky. And others thought it was a big (2)                     of cheese!       The telescopes were made, and men saw that the moon was really another world. They wondered(3)       it was like. They dreamed of going there. On July 20, 1969, that dream came (4)                      . Two American astronauts landed on the moon. (5)                        names were Neil Armstrong and Edwin Aldrin.       The first thing the men found was that the moon is covered (6)              dust. The dust is so thick that the men left (7)                 where they walked. Those were the first marks a living thing had ever made on the moon. And they could (8)                  there for years and years. There is no wind or rain to wipe them off. The two men (9)                    rocks to bring back to Earth for study. They dugup dirt to bring back. They set up machines to find out things people wanted to know. Then they were off on their long trip (10)              the earth. Long ago a lot of people (1)                     the moon was a god. Other people thought it was just a light in the sky.

Tiếng Anh Lớp 8
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

The underlined phrase “laughed at” in the passage is closest in meaning to_________.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Choose the item A, B, C or D that best answers the question about the passage.       A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people cannot figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.       Even though UFOs can be anything, people can use the world UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an identified flying object.       Studies estimate that 50-90% of all reported sightings are identified later. Usually 10-20% are never identified. Studies also show that very few UFO sightings are hoaxes (people trying to trick other people). Most UFOs are actually natural or man-made objects that looked strange. 80-90% of UFOs are identified as one of three different things: (a) astronomical causes (for example: planets, stars, or meteors); (b) aircraft; and (c) balloons. 10-20% of UFOs are other causes, such as birds, clouds, mirages, searchlights, etc. 1.   Another word used to describe a UFO is              .

Tiếng Anh Lớp 8
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15 câu Trắc nghiệm Toán 10 Cánh Diều Dấu của tam thức bậc hai có đáp án

Tam thức bậc hai fx=x2+1−3x−8−53:

Toán Lớp 10
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

 Bullies can happen in the following places EXCEPT_________.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.       Why does Man want to go to other planets (1)                 the solar system? Justfor adventure? True, (2)            is adventure in space travel. But a (3) toother planets would also be (4)                    . For example, space stations could be built that would give us (5)                         information about the weather.       In space stations (6)          around the earth, Man could live and study the cloud formation on (7)              surface. These formations could tell us what weather to(8)                     in any part of the world at any time. (9)        information wouldbe useful to pilots, to ship captains, and even to farmers (10)                 must setdates for planting and harvesting. Why does Man want to go to other planets (1)                 the solar system? Justfor adventure?

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Choose the words given to fill in the blanks correctly. light                 between          becomes          month around            seems              see                   earth Once a month, the moon travels in a complete circle (1)                   the earth. As it movesin its circle, it (2)                        to change shape. This is because we, on Earth, (3)                            only that section of the moon that catches the sun’s light. When the sun, the moon and the earth are in a straight line with the moon in the middle, it is impossible for us to see the moon. At this point, the moon is said to be new.We are unable to see it in this position because the side facing the (4)                   is inshadow. As the new moon begins to circle the earth, however, we begin to see that partof its surface that catches the sun’s (5)   . After some days, when it reaches theposition where the earth is (6)                   the sun and the moon, we see the full moon.Later, it again (7)                                 half moon, becoming smaller and smaller until it disappearsagain to become the new moon. This cycle takes 28 days or a lunar (8)               .

Tiếng Anh Lớp 8
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

Soon after, factory (27) _________in the US and Europe began wearing jeans.

Tiếng Anh Lớp 9
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Bộ 24 Đề kiểm tra Giữa kì 2 Toán 11 có đáp án (Mới nhất) (Đề 1)

Cho dãy số un thỏa mãn lim un=5. Giá trị của lim un+2 bằng

Toán Lớp 11
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

His name was Levi Strauss. Because they were so strong, “Levi’s pants” became (26)_________ gold miners, farmers and cowboys.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Read the passage and use the words in the box to fill in the space. which, smaller, ago, which, make, where, much, many, what       The first worlds computer was built at University of Pennsylvania in 1946, although computer-like machines were built in the 19th century. Computers were ........................... (1) commercially for the first time in the 1950s, and a lot of progresshas been made then. Computers are now much   ........................... (2) and more powerful.       Computers are used in ........................... (3) fields – in business, science, medicine, andeducation. They can be used to forecast the weather or to control robots........................... (4) make cars. The computer’s memory is the place .......................... (5) informationis kept and calculations are done. A computer cannot think for itself. It must betold exactly....................... (6) to do. A lot of difficult calculations can be done veryquickly on a computer. Computers don’t ........................... (7) mistakes. Stories are heardsometimes about computers paying people too........................... (8) money or sendingthem bills for things they didn’t buy. These mistakes are made by programmers.Some years ........................... (9), an American computer-controlled rocket went out ofcontrol and had to be destroyed. The accident was caused by a small mistake in one line of the program, ........................... (10) cost the USA 18 million dollars. Criminalshave found that computer crimes are a lot easier than robbing banks. Hundreds of millions of dollars are stolen from business every year by people changing the information in computers.

Tiếng Anh Lớp 8
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15 câu Trắc nghiệm Toán 10 Cánh Diều Dấu của tam thức bậc hai có đáp án

Số giá trị nguyên của x để tam thức fx=2x2−7x−9 nhận giá trị âm là

Toán Lớp 10
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

The story of jeans started (24) _________ two hundred years ago.

Tiếng Anh Lớp 9
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

People in Genoa, Italy made pants so the cloth made in Genoa (25) _________ “jeanos”.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.       Computers are helpful (1)                         many ways. First, they are fast. They canwork with information even (2)                                   quickly than a person. Second, computerscan work with a lot of information at the same time. Third, they can (3)                  information for a long time. They do not forget things that the common people do. (4)                       , computers are almost always correct. They are not perfect, but theyusually do not (5)             mistakes.       Recently, it is important (6)                                  about computers. There are a number ofthings to learn. Some companies have (7)                                at work. In addition, mostdiversities (8)                                day and night courses in Computer Science. Another way to learn is from a book, or from a friend. After a few hours of practice, you can (9)                                   with computers. You may not be an expert, but you can have (10)                        . Computers are helpful (1)                         many ways. First, they are fast.  

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Read the passage and fill in the blank with the correct words.       Most American television programmes (1)                                  produced in Hollywood.Each year, proposals (2)               new television serials are submitted to networkexecutives for (3)                             . Only a few are accepted often those linked (4)                       a highly successful performer or producer.       The (5)                                          phase is the writing of scripts. These scripts are reviewed (6)                                               the network and a small (7)                                                    is selected to be (8)                             intopilot programmes if the programming executives like a pilot programme or it (9)                                 good rating in a trial telecast, the pilot eventually gets produced as aregularly scheduled (10)                                    .

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Read the text below and choose the best answer for each question after the text. SOME ANIMALS CAN PREDICT FUTURE EARTHQUAKES       A recent investigation by scientists at the U.S. Geological Survey shows that strange animal behavior might help predict future earthquakes. Investigators found such occurrences in a ten-kilometer radius of the epicenter of a fairly recent quake. Some birds screeched and flew about wildly: dogs yelped and ran around uncontrollably.       Scientists believe that animals can perceive these environmental changes as early as several days before the mishap.       In 1976, after observing animal behavior, the Chinese were able to predict a devastating quake. Although hundreds of thousands of people were killed, the government was able to evacuate millions of other people and thus keep the death toll at a lower level. 1.   What prediction may be made by observing animal behavior?

Tiếng Anh Lớp 8
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15 câu Trắc nghiệm Toán 10 Cánh Diều Dấu của tam thức bậc hai có đáp án

Tam thức bậc hai fx=−x2+3x−2 nhận giá trị không âm khi và chỉ khi

Toán Lớp 10
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

Jeans are very popular with (23) _________ people all over the world. Some people say that  

Tiếng Anh Lớp 9
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Bộ 24 Đề kiểm tra Giữa kì 2 Toán 11 có đáp án (Mới nhất) (Đề 1)

Cho hai dãy số un,vn thỏa mãn lim un=18 và lim vn=3.Giá trị của lim unvn bằng

Toán Lớp 11
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Chuyên đề 4 : Reading có đáp án

Read, then choose the best answer (A, B, c or D) to complete the gap.       The next generation of telephone users will probably laugh (1)                          weexplain how we used to stand next to a wall in the kitchen to (2)                                 a phone call. Mobile communications, already highly advanced compared with a decade ago, will completely change communications in the next few years.       (3)                                      there are millions of people using mobile phones, most people know(4)            aboutthe mobile telecommunications industry and its technology.There are three types of mobile phone. These are hand portables, pocket-sized hand portables and transportables. The smallest and most popular are the pocket-sizedhand portables. These work on rechargeable batteries, which allow an (5)             ofup to 80 minutes’ conversation. Mobiles that are fitted permanently in a vehicle donot (6)               on separate batteries. They require an external aerial on the vehicle.This can mean a stronger signal with clearer (7)        . Transportables have a highpower capability and can be used (8)                                  anywhere.They come with powerfulbattery packs for longer, continuous use and may also be put (9)         a vehicle,using its electrics. They ( 10)                to be bulkier than hand portables. The next generation of telephone users will probably laugh (1)                          weexplain how we used to stand next to a wall in the kitchen to (2)                                 a phone call.

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Read the text and fill in the blanks with the suitable words.       Television is ( 1 )              of man’s most important (2)                          of communication.It brings (3)            and sounds from (4)                the world into millions ofhomes. A person (5)                                   a television (6)               can sit in his (7)                     and watch the president (8)                 a speech or visit a foreign country. He cansee a war being fought and watch statement try to bring about peace. (9)         television, (10)                  viewers can see and learn about people, places, and thingsin faraway lands.

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Read the passage and answer the questions. THE POSTAGE STAMP       Before the invention of the postage stamp, it was difficult to send a letter to another country. The sender paid for the letter to travel in his or her own country. Then the person in the other country paid for that part of the trip. If a letter crossed several countries, the problem was worse.       Rowland Hill, a British teacher, had the idea of the postage stamp with gum on the back. The British post office made the first stamps in 1840. They were the Penny Black and the Twopence Blue. A person bought a stamp and put it on a letter, the post office delivered the letter. When people received letters, they didn’t have to pay anything. The letters was prepaid.       Postage stamps became popular in Great Britain immediately. Other countries started making their own postage stamps very quickly.       There were still problems with international mail. Some countries did not want accept letter with stamps from another countries. Finally, in 1874, a German organized the Universal Postal System. Each country in the UPS agreed to accept letter with prepaid postage from the other members. Today the offices of the U PS are in Switzerland. Almost every country in the world is a member of this organization. It takes care of any international mail problems.       Today post offices in every country sell beautiful stamps. Collecting stamps is one of the most popular hobbies in the world, and every stamp collector knows about the Penny Black and the Twopence Blue.   Questions 1.   Why was it difficult to send a letter to another country before the invention of the postage stamp?       .....................................................................................................................................................       ..................................................................................................................................................... 2.   Why were the postage stamps popular?       .....................................................................................................................................................       ..................................................................................................................................................... 3.   How did other countries react with the postage stamps?       ..................................................................................................................................................... 4.   What does the Universal Postal System do today?       ..................................................................................................................................................... 5.   Why do stamp collectors know about the Penny Black?       .....................................................................................................................................................

Tiếng Anh Lớp 8
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

At 8 o’clock the plane took off into the air and soared above the clouds.

Tiếng Anh Lớp 9
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Fruit and vegetables grew in abundance on the island. The islanders even exported the surplus.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Read the passage and complete the sentences.       One of the main sources for the spreading of news and events through out the world is the newspaper. The purpose of newspaper is to inform the public of political, social, economic and entertainment happenings, among other things. Generally, there are three types of newspapers. Daily newspapers publish at least one edition every weekday. Most dailies also have a weekend edition. Daily newspapers often have sections for news, sports, arts, and entertainment, business, and classified advertising. Weekly newspapers print once a week and cover news of interest to readers in a smaller area than that of a daily paper. They focus on local happenings rather than national or international events. Special-interest newspapers may publish daily, weekly, monthly, or even less frequently. They generally disseminate news of interest to a particular group of readers of feature news about a specific topic.       Thanks to the development of Internet, we can now get access to electronic newspapers. To some extent, e-newspapers are cheap, up-to-date, and convenient for most readers in the world. 1.   The purpose of newspapers is to.................................................................................................       ..................................................................................................................................................... 2.   There are three types of newspaper. They are ............................................................................       ..................................................................................................................................................... 3.   Daily newspapers often have sections for ..................................................................................       ..................................................................................................................................................... 4.   Weekly newspapers focus on .....................................................................................................       ..................................................................................................................................................... 5.   Special-interest newspapers cover news of interest to ...............................................................       ..................................................................................................................................................... 6.   Electronic newspapers are ..........................................................................................................                        

Tiếng Anh Lớp 8
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Chuyên đề 4 : Reading có đáp án

Read the passage and fill in the blanks with the suitable words.       Most people think of computers as very modern inventions, products of our new technological. But actually the idea for a computer (1)                 worked out overtwo centuries ago by a man (2)                          Charles Babbage.             Babbage was born (3)             1791 and grew up to be a brilliant mathematician. He drew up plans for several calculating machines (4)                     he called “engines”. But despite the fact that he (5)                          building some of these he never finished any of them. Over the years people have argued (6)                    his machines would ever work. Recently, however, the Science Museum in London has finished building (7)                 engine based on one of Babbages designs. (8)                       has taken six years to complete and more (9)                        four thousand parts have been specially made. Whether it works or not, the machine will be on show at a special exhibition in the Science Museum (10)                remind people of Babbages work

Tiếng Anh Lớp 8
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15 câu Trắc nghiệm Toán 10 Cánh Diều Dấu của tam thức bậc hai có đáp án

Cho fx=ax2+bx+c  a≠0. Điều kiện để fx<0 , ∀x∈ℝ là:

Toán Lớp 10
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Chuyên đề 4 : Reading có đáp án

Choose the word or phrase among A, B, C or D that best fits the blank spacein the following passage. TELEPATHY: MIND TO MIND COMMUNICATION       The (1)                   “telepathy” has been derived from the words “tele” meaning“distance” and “pathy” meaning “feeling”. So telepathy actually means (2)              feelings through a distance. Telepathy is the communication (3)                  twominds, (4)              over a distance, without the (5)                      of the five knownsenses.       At some point of time or the other, we all have (6)                      telepathy. Maybe youwere thinking of someone you haven’t talked to for months and you suddenly get a call from them. Or (7)                          two people are together, they might say the same thing at the same time. These are spontaneous mind-to-mind (8)            that tend to occur frequently between closely related individuals.  The (1)                   “telepathy” has been derived from the words “tele” meaning“distance” and “pathy” meaning “feeling”

Tiếng Anh Lớp 8
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

Everyone has their own style of studying. I prefer to study by myself so I am not disturbed.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Choose the word (A, B, C, or D) that best fits each of the blank spaces.       Dear Sir or Madam,       We are in Class B, Year 8 at Stonehouse School. Every year our class goes (1) an adventure holiday. This year we would like (2)                                    your center. Weare planning (3)                                 away for the first week in May, arriving on Friday 2 May.There will be 15 boys and 15 girls in our party, and two teachers. We are (4)                   in sailing, rock climbing, canoeing, and map-reading. Can you send us information about your center?       We look forward (5)                     from you.       Yours faithfully,       Class B  We are in Class B, Year 8 at Stonehouse School. Every year our class goes (1) an adventure holiday

Tiếng Anh Lớp 8
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Bộ 24 Đề kiểm tra Giữa kì 2 Toán 11 có đáp án (Mới nhất) (Đề 1)

lim 5n bằng

Toán Lớp 11
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Chuyên đề 4 : Reading có đáp án

Read the text and fill in the blanks with the suitable words.                         successful       effect               communicative           poisons                         harmful          with                 increasing                   major   WATER POLLUTION IN INDIA       Contamination of water from any external source that makes it (1)                    tolife is known as water pollution. (2)               the fast industrial development andmodern civilization, the problem of water pollution is (3)       day by day. The(4)                  sources of water pollution are domestic wastes, agricultural wastes,sewage disposal, industrial wastes, radioactive wastes and oil leakages.       All the India rivers, including the holy river Ganga, have become highly polluted today. However, the Ganga Action Plan to control its water from pollution has notbeen proved (5)        . The (6)                                  of water pollution is widespread. Itcauses many severe water-borne diseases.       According to WHO, 21 per cent of all (7)                        diseases in India are water­borne diseases. Oil is the main pollutant of the sea water. Huge tankers often dump oil into the sea. This act of dumping (8)                  kills sea plants and animals.

Tiếng Anh Lớp 8
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

The graduation is sad, because the time we studied together has come to an end.

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Read the following passage and choose the best answers each of the questions.       Nylon was invented in the early 1930s by an American chemist, Julian Hill. Other scientists worked with his invention and finally on 27 October 1938, Nylon was introduced to the world. It was cheap and strong and immediately became successful, especially in the making of ladies’ stocking.       Today, nylon is found in many things: carpets, ropes, seat belts, furniture, computers, and even spare parts of the human body. It has played an important part : in our lives for over 50 years. 1.   Julian Hill was a/ an                     .

Tiếng Anh Lớp 8
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15 câu Trắc nghiệm Toán 10 Cánh Diều Dấu của tam thức bậc hai có đáp án

Cho fx=ax2+bx+c  a≠0. Điều kiện để fx≥0 , ∀x∈ℝ 

Toán Lớp 10
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20 Đề thi giữa học kì 1 môn Tiếng Anh lớp 9 Đề 4

Phuong: “I’m taking my TOEFL test tomorrow.” Daisy: “_________”

Tiếng Anh Lớp 9
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Chuyên đề 4 : Reading có đáp án

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.       El Nino is a weather phenomenon of the Pacific Ocean which is (1)                              byan abnormal (2)            of water on the surface of the ocean. It has the (3)                 to influence global weather patterns as it brings drought to some continents and (4)                 rain to others. It was first (5)              by fishermen coming from Spanishports in the Pacific in the 17th century. It got its name (Spanish for “boy child”)because it usually takes (6)       near Christmas time. It can cause catastrophic(7)                  . The 1982 El Nino (8)      in 1,500 deaths, but it can be a lot worsethan that. Sea animals, (9)                    fish and birds, also die in large numbers. It is (10)                      that sailors in the Pacific can smell the dead sea-life during El Nino. El Nino is a weather phenomenon of the Pacific Ocean which is (1)                              byan abnormal (2)            of water on the surface of the ocean.

Tiếng Anh Lớp 8
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