Câu hỏi:
08/08/2022 165
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
In the history of technology, computers and calculators were innovative developments. They are essentially different from all other machines because they have a memory. This memory stores instructions and information. In a calculator, the instructions are the various functions of arithmetic, which are permanently remembered by the machine and cannot be altered or added to. The information consists of the numbers keyed in. An electronic pocket calculator can perform almost instant arithmetic. A calculator requires an input unit to feed in numbers, a processing unit to make the calculation, a memory unit, and an output unit to display the result. The calculator is powered by a small battery or by a panel of solar cells. Inside is a microchip that contains the memory and processing units and also controls the input unit, which is the keyboard, and the output unit, which is the display. The input unit has keys for numbers and operations. Beneath the key is a printed circuit board containing a set of contacts for each key. Pressing a key closes the contacts and sends a signal along a pair of lines in the circuit board to the processing unit, in which the binary code for that key is stored in the memory. The processing unit also sends the code to the display. Each key is connected by a different pair of lines to the processing unit, which repeatedly checks the lines to find out when a pair is linked by a key. The memory unit stores the arithmetic instructions for the processing unit and holds the temporary results that occur during calculation. Storage cells in the memory unit hold the binary codes for the keys that have been pressed. The number codes, together with the operation code for the plus key, are held in temporary cells until the processing unit requires them. When the equals key is pressed, it sends a signal to the processing unit. This takes the operation code-for example, addition-and the two numbers being held in the memory unit and performs the operation on the two numbers. A full adder does the addition, and the result goes to the decoder in the calculator's microchip. This code is then sent to the liquid crystal display unit, which shows the result, or output, of the calculation.
The word "innovative" in line 1 could best be replaced by ...............
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
Đáp án chính xác
Câu hỏi trong đề:
1400 câu trắc nghiệm Đọc hiểu Tiếng Anh có đáp án !!
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
Quảng cáo
Trả lời:
Giải bởi Vietjack
Đáp án C
Từ "innovative" ở dòng 1 có thể được thay thế tốt nhất bởi ..........
recent (adj): gần đây
important (adj) : quan trọng
revolutionary (adj): cách mạng
complicated (adj): phức tạp
innovative (adj): có tính đổi mới ≈ revolutionary (adj)
Từ "innovative" ở dòng 1 có thể được thay thế tốt nhất bởi ..........
recent (adj): gần đây
important (adj) : quan trọng
revolutionary (adj): cách mạng
complicated (adj): phức tạp
innovative (adj): có tính đổi mới ≈ revolutionary (adj)
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 2:
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
It is commonly believed that school is where people go to get an education. Nevertheless, it has been said that today children interrupt their education to go to school. The difference between schooling and education implied by this remark is important. Education is much more open-ended and all-inclusive than schooling. Education knows no limits. It can take place anywhere, whether in the shower or on the job, whether in the kitchen or on the tractor. It includes both the formal learning that takes place in school and the whole universe of informal learning. The agent (doer) of education can vary from respected grandparents to the people arguing about politics on the radio , from a child to a famous scientist. Whereas schooling has a certain predictability, education quite often produces surprises. A chance conversation with a stranger may lead a person to discover how little is known of other religions. People receive education from infancy on. Education, then, is a very broad, inclusive term; it is a lifelong process, a process that starts long before the start of school, and one that should be a necessary part of one’s entire life. Schooling, on the other hand, is a specific, formalized process, whose general pattern varies little from one setting to the next. Throughout a country, children arrive at school at about the same time, take the assigned seats, are taught by an adult, use similar textbooks, do homework, take exams, and so on. The pieces of reality that are to be learned, whether they are the alphabet or an understanding of the workings of governments, have been limited by the subjects being taught. For example, high school students know that they are not likely to find out in their classes the truth about political problems in their society or what the newest filmmarkers are experimenting with. There are clear and undoubted conditions surrounding the formalized process of schooling.
In the passage, the expression “children interrupt their education to go to school” mostly implies that ..........
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
Xem đáp án »
08/08/2022
623
Câu 4:
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
Today I’d like to begin a discussion on the problem of the heating up the earth. First, we’ll touch on the relationship between fluorocarbons and the ozone layer. You probably remember that the ozone layer is the protective shield around the earth. It is important to all life, because it filters out harmful ultraviolet light from the sun. Ozone itself, a form of oxygen, is regularly made by the action of the sun in the upper atmosphere. It is also regularly destroyed by natural chemical processes. The problem now is that too much of the ozone layer is being destroyed. Scientists suspect that certain chemicals, such as fluorocarbons, are contributing to the depletion of the ozone layer. And how do we use fluorocarbons? The most common uses are in spray cans and cooling systems. The chemical pollution from these fluorocarbons can account for some of the ozone losses that have been reported. There are, however, new studies linking the sun itself to the depletion of the ozone layer. We’ll go into that new study more next time.
Who is the most likely speaker?
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
Xem đáp án »
08/08/2022
437
Câu 5:
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
Mr. Faugel was convinced that students’ nervousness had affected their scores; to reduce the anxiety of these students who had already been tested, he gave 22 of them a beta blocker before readministration of the test. Their scores improved significantly. The other 8 students (who did not receive the beta blockers) improved only slightly. Secondtime test-takers nationwide had average improvements which were similar to those in Faugel's non-beta blocker group. Beta blockers are prescription drugs which have been around for 25 years. These medications, which interfere with the effects of adrenalin, have been used for heart conditions and for minor stress such as stage fright. Now they are used for test anxiety. These drugs seem to help test-takers who have low scores because of test fright, but not those who do not know the material. Since there can be side effects from these beta blockers, physicians are not ready to prescribe them routinely for all test-takers.
The word “reduce” in paragraph 1 most nearly means .................
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
Xem đáp án »
08/08/2022
390
Câu 7:
When we moved to our new house near the sea, I was eight years old. Even before that I had spent every summer messing about on boats. My dad had taught me to sail before I learnt to ride a bike so I knew how I wanted to spend my time at the new house- I was going to get my own boat and sail it everyday. The house was only a few meters from the water's edge, and in rough weather the waves would come crashing into the front garden. I used to sit with my nose pressed to the glass, fascinated by the power of the ocean. I grew up watching the skies to see if it was going to rain; would I be going sailing that afternoon or not? Of course I sometimes wished I could live in the town like my friends. I used to get angry with my parents, who had taken early retirement because they seemed incapable of getting anywhere on time. Dad drove me the eight miles to school everyday, but I was often late because he had been walking on the cliffs earlier in the morning and had lost track of time. When I was taking my university entrance exams, I used to stay over at a friend's in town, just in case. All in all, I was lucky to grow up by the sea and I still love to sail.
Growing up by the sea, the writer felt ............
Xem đáp án »
08/08/2022
345
về câu hỏi!