The creation of helium within stars____________.
A. cannot be measured
B. produces hydrogen as a by-product
C. produces energy
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Đáp án C
Dịch đề bài: Sự tạo thành Heli ở các ngôi sao____________
A. không thể đo lường được
B. sinh ra Hydro như một sản phẩm phụ
C. sinh ra năng lượng
D. khiến Heli trở nên dồi dào hơn nhiều ở các ngôi sao già so với các ngôi sao trẻ
Câu hỏi lấy thông tin. Hướng dẫn làm bài có ở câu 44.
Trích thông tin bài: “Helium is created in stars. In fact, nuclear reactions that convert hydrogen to helium are responsible for most of the energy that stars produce.”
Tạm dịch: Heli được tạo ở các ngôi sao. Trong thực tế, các phản ứng hạt nhân chuyển Hydro thành Heli chịu trách nhiệm sinh ra phần lớn năng lượng mà các ngôi sao sinh ra. → phản ứng chuyển Hydro thành Heli sinh ra phần lớn năng lượng của các ngôi sao.
Vậy, đáp án C là phù hợpMark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
I don’t know much about computer, so I asked the assistant for____________advice.
You should know that everyone in this office____________busy planning the dance for a week.
Everyone thought she would accept the offer. ____________, she turned it down immediately.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Keith had so interesting and creative plans that everyone wanted to work on his committee.
This is a rare opportunity. You should take advantage of it to get a better job.
It was hard to____________the temptation to watch the late-night show even though I was so tired then.
Even though she had been studying hard, she had only a____________chance of passing the exam.
“Would you like to come out to dinner with me tonight, Jenny?” Paul said.
The company managed to beat the ____________on delivering its new system.
Most headaches____________with aspirin unless they are too severe.
I would have cooked something special if I____________you were coming.
Women have proved repeatedly that they are equal and often superior____________men in almost every field.
Read the following passage and mark the letter A, B, C or Don your answer sheet to indicate the correct word for each of the blanks from 33 to 37.
Everyone wants to reduce pollution. But the pollution (33) ____________is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. (34) ____________, exhaust from automobiles causes a large percentage of air pollution. But the automobile provides transportation for millions of people. Factories discharge much of the material that pollutes the air and water but factories give (35) ____________to a large number of people.
Thus, to end or greatly reduce pollution immediately, people would have to (36) ____________using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways. Scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws (37) ____________require businesses and traffic to stop, or to cut down on certain polluting activities.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
