-
Câu hỏi:
Most of the helium in the universe was formed____________
-
A.
in a very short time
-
B.
in interstellar space
-
C.
before most of the hydrogen
-
D.
during the first minute of the universes existence
Lời giải tham khảo:
Đáp án đúng: A
Đáp án A
Dịch đề bài: Hầu hết Heli trong vũ trụ được tạo ra____________
A. trong một thời gian rất ngắn
B. trong khoảng không liên sao
C. trước khi phần lớn Hydro được sinh ra
D. trong phút tồn tại đầu tiên của Vũ trụ.
Câu hỏi lấy thông tin. Hướng dẫn làm bài có ở câu 44.
Trích thông tin bài: “But the nuclear reactions that led to the formations of helium went on for only relatively short time. By the time the universe was a few minutes old, helium production had effectively ceased.”
Tạm dịch: Nhưng phản ứng hạt nhân tạo ra Heli chỉ tiếp diễn trong một quãng thời gian khá ngắn. Cho đến lúc Vũ trụ tồn tại được một vài phút, quá trình sản xuất Heli đã hoàn toàn dừng lại.
Như vậy, các phản ứng sinh ra Heli chỉ kéo dài vài phút, khá ngắn.
Vậy nên, đáp án A là phù hợp.
Hãy trả lời câu hỏi trước khi xem đáp án và lời giải -
A.
Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài
QUẢNG CÁO
CÂU HỎI KHÁC
- Indicate the word whose underlined part differs from the other three in pronunciation: theatre, thunder, therefore, throughout
- Indicate the word whose underlined part differs from the other three in pronunciation: apologises, invites, roofs, certificates
- Indicate the word that differs from the rest in the position of the main stress: sector, lawyer, workforce, prefer
- Indicate the word that differs from the rest in the position of the main stress: diversity, biography, biology, fundamental
- 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
- The children were made____________up the mess they had left before they could watch TV
- Most headaches____________with aspirin unless they are too severe
- I wish I____________able to accept that role, but I was preparing for another play at the time
- Everyone thought she would accept the offer. ____________, she turned it down immediately
- 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
- There is still widespread____________against older people in the job market
- The arrested man is suspected of____________government funds for himself
- It was hard to____________the temptation to watch the late-night show even though I was so tired then
- The company managed to beat the ____________on delivering its new system
- Even though she had been studying hard, she had only a____________chance of passing the exam
- I ran in a marathon last week, but I was not fit enough. I____________after 15 kilometres
- Keith had so interesting and creative plans that everyone wanted to work on his committee
- Air pollution, together with littering, are causing many problems in our large, industrial world.
- A paragraph is a portion of a text consists of one or more sentences related to the same idea.
- Greater use of public transport would cut the amount of pollution from cars
- Mark delayed writing the book until he had done a lot of research
- Would you like to come out to dinner with me tonight, Jenny?” Paul said
- Lee gave up her job. She planned to continue her education
- This is a rare opportunity. You should take advantage of it to get a better job
- Mark and Anne are talking after the class.Mark: Guess what? I’ve been recruited to be a member of Green Dream Volunteer Group.
- Amy and Jacob are talking about the two-day excursion at the end of the school year.Amy: You look so sad.
- It was late at night, the wind was howling and when she heard the knock on the door
- Wild animals use various methods to ward off predators and their natural enemies
- We should grow more trees so that they can absorb more carbon dioxide from the atmosphere
- We have achieved considerable results in the economic field, such as high economic growth/;
- Everyone wants to reduce pollution. But the pollution
- It is complicated because much pollution is caused by things that benefit people
- Factories discharge much of the material that pollutes the air and water but factories give
- Thus, to end or greatly reduce pollution immediately, people would have to
- Governments can pass and enforce laws
- Parents can give great help to their childrens language development by____________them.
- What does the word 'they' in the second paragraph refer to?
- During the training session, experimental parents were taught to____________.
- What was the major difference between the control group and the experimental one in the study?
- What conclusion can be drawn from this passage?
- What does the passage mainly explain?
- According to the passage, helium is____________.
- The word constituents” is closest in meaning to____________.
- Why does the author mention cosmic rays”?
- The word they” refers to____________ k
- The word vary” is closest in meaning to____________.
- The creation of helium within stars____________.
- Most of the helium in the universe was formed____________
ADMICRO
ADMICRO
