Câu hỏi:

14/05/2025 26

Choose 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

Đáp án chính xác

C. straight

D. oval

Trả lời:

verified Giải bởi Vietjack

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

Câu 1:

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.

Xem đáp án » 14/05/2025 102

Câu 2:

Animal communication is not a straightforward subject. It’s complicated because animals communicate differently with each other.

Xem đáp án » 16/05/2025 64

Câu 3:

According to a team of scientists, there are evidence that Mount Everest is still rising.

Xem đáp án » 14/05/2025 59

Câu 4:

As we walked around this pretty little island, we were charmed by the ________ of the local people.

Xem đáp án » 17/05/2025 57

Câu 5:

A sign warned motorists ______ dangers.

Xem đáp án » 12/05/2025 57

Câu 6:

Because of his illness, he could not work effectively. (impossible)

=> His illness made ............... work effectively.

Xem đáp án » 17/05/2025 57

Câu 7:

Ants and bees are described as _____ insects. (INDUSTRY)

Xem đáp án » 16/05/2025 51

Câu 8:

Mark the letter A, B, C, or D to indicate the sentence that best completes each of the following exchanges

A student is asking the librarian to help her to fax a report.

- Student: “Could you help me to fax this report?”

- Librarian: “________”

Xem đáp án » 12/05/2025 51

Câu 9:

All . . . . must complete a visa form upon arrival at Singapore airport.

Xem đáp án » 15/05/2025 51

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.

Xem đáp án » 12/05/2025 48

Câu 11:

All motorcyclists must wear helmets. It is…………....for them to wear helmets.

Xem đáp án » 14/05/2025 48

Câu 12:

A country which exports a lot of rice is called a(n)........country.

Xem đáp án » 12/05/2025 46

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.

Because of the blizzard weather, my departure to New York will be delayed.

Xem đáp án » 17/05/2025 45

Câu 14:

At this time yesterday, while I ________ a book, my sister ______ to music.

Xem đáp án » 17/05/2025 44

Câu 15:

After two hours of hard work, we decided to _______ off for a little cup of coffee.

Xem đáp án » 14/05/2025 44

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