Câu hỏi:
14/05/2025 26Choose the best answer A, B, C or D to complete the sentences.
Aircraft flying in …….. arcs create microgravity for tests and simulations that last 20-25seconds.
A. circular
B. parabolic
C. straight
D. oval
Trả lời:

Đáp án B
Xét ngữ cảnh, khi máy bay bay theo một đường parabol, nó sẽ leo lên và sau đó rơi tự do theo quỹ đạo hình parabol. Ta thấy các đáp án:
A.circular: hình tròn
B.parabolic: hình parabol
C.straight: thẳng
D.oval: hình bầu dục
Dịch nghĩa: "Máy bay bay theo các quỹ đạo parabol tạo ra vi trọng lực cho các thí nghiệm và mô phỏng kéo dài 20-25 giây."
CÂU HỎI HOT CÙNG CHỦ ĐỀ
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Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
After her parents' death, her chief inheritance was an old Bible, which she read and valued.
Câu 2:
Animal communication is not a straightforward subject. It’s complicated because animals communicate differently with each other.
Câu 3:
According to a team of scientists, there are evidence that Mount Everest is still rising.
Câu 4:
As we walked around this pretty little island, we were charmed by the ________ of the local people.
Câu 6:
Because of his illness, he could not work effectively. (impossible)
=> His illness made ............... work effectively.
Câu 8:
Mark the letter A, B, C, or D to indicate the sentence that best completes each of the following exchanges
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- Student: “Could you help me to fax this report?”
- Librarian: “________”
Câu 9:
All . . . . must complete a visa form upon arrival at Singapore airport.
Câu 10:
Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
If you want (A) some useful advice (B), you have better (C) talk to your parents about (D) your problem.
Câu 11:
All motorcyclists must wear helmets. It is…………....for them to wear helmets.
Câu 12:
A country which exports a lot of rice is called a(n)........country.
Câu 13:
Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
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Câu 14:
At this time yesterday, while I ________ a book, my sister ______ to music.
Câu 15:
After two hours of hard work, we decided to _______ off for a little cup of coffee.