Why does the author mention the discovery of air pressure? According to the passage, which of the following is not true?

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问题 Why does the author mention the discovery of air pressure?
According to the passage, which of the following is not true?

选项 A、Galileo did not solve the problem of the water-pump.
B、When a scientist tries to establish a scientific law, he must collect much information.
C、An original hypothesis is not always accepted.
D、Using a good vacuum pump, it is possible to raise water from the bottom of a building to the roof 50 feet above.

答案D

解析
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