Why does the author mention “cosmic rays”?
A. To explain how the universe began.
B. As an example of an unsolved astronomical puzzle.
C. To explain the abundance of hydrogen in the universe.
Giải bởi Vietjack
Đáp án D
Dịch câu hỏi: Tại sao tác giả lại nhắc đến “tia vũ trụ”?
A. Để giải thích cách vũ trụ khai sinh
B. Như một ví dụ về một câu hỏi thiên văn chưa được trả lời.
C. Để giải thích về sự dồi dào của Hydro trong Vũ trụ.
D. Như một phần trong danh sách những thứ có chứa Heli.
Câu hỏi lấy thông tin. Hướng dẫn làm bài có ở câu 44.
Trích thông tin bài: “Helium has been found in old stars, in relatively young ones, in interstellar gas, and in the distant objects known as quasars. Helium nuclei have also been found to be constituents of cosmic rays that fall on the earth...”
Tạm dịch: Heli được tìm thấy ở các ngôi sao già, ở những ngôi sao khá trẻ, ở khí liên sao, và trong cả những vật thể xa xôi được biết đến với cái tên là vật thể giống sao. Hạt nhân Heli cũng được nhận thấy là thành tố cấu thành của tia vụ trụ chạm tới trái đất...
Như vậy, tia vũ trụ được nhắc đến như một trong những nơi có thể tìm thấy Heli.
Vậy, đáp án D là phù hợp.Mark 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.
I would have cooked something special if I____________you were coming.
There is still widespread____________against older people in the job market.
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.
Everyone thought she would accept the offer. ____________, she turned it down immediately.
Even though she had been studying hard, she had only a____________chance of passing the exam.
This is a rare opportunity. You should take advantage of it to get a better job.
The arrested man is suspected of____________government funds for himself.
Women have proved repeatedly that they are equal and often superior____________men in almost every field.
Most headaches____________with aspirin unless they are too severe.
A paragraph is a portion of a text consists of one or more sentences related to the same idea.
Amy and Jacob are talking about the two-day excursion at the end of the school year. Amy: “You look so sad. ____________”
Jacob: “I couldn’t get my parents’ permission to stay the night away from home.”
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.
Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.
