It is NOT stated in the passage that Halley's bell A. was wider at the bottom than at the top B. was made of tarred wood C. was completely enclosed D. could hold more than one diver

C

Câu nào không được trình bày trong bài đọc về quả chuông của Halley?

A. lớn hơn ở đáy so với ở đỉnh

B. được làm từ gỗ có quét dầu hắc

C. hoàn toàn khép kín

D. có thể chứa nhiều hơn 1 thợ lặn

Dẫn chứng: The diving contraption that Halley designed was in the shape of a bell that measured three feet across the top and five feet across the bottom and could hold several divers comfortably; it was open at the bottom so that divers could swim in and out at will. The bell was built of wood, which was first heavily tarred to make it water repellent and was then covered with a half-ton sheet of lead to make the bell heavy enough to sink in water.

=>Chọn C