Halley's bell was better than its predecessors because it A. was bigger B. provided more air C. weighed less D. could rise more quickly

Halley's bell was better than its predecessors because it

A. was bigger
B. provided more air
C. weighed less   
  D. could rise more quickly

Trả lời

B

Quả chuông của Halley tốt hơn so với những cái chuông trước đó bởi vì nó

A. To hơn

B. Cung cấp nhiều không khí hơn

C. Trọng lượng nhẹ hơn

D. Có thể nâng lên nhanh chóng

Dẫn chứng: Halley's bell was an improvement in that its design allowed for an additional supply of fresh air that enabled a crew of divers to remain underwater for several hours.

=>Chọn B

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