问题 选择题
一艘轮船从海里驶人河里,它受到的浮力将(  )

A.变大

B.不变

C.变小

D.无法确定

答案

答案:B

名词解释
选择题
[ ]

A. These are cars

B. Yes, they are

C. They are buses

D. No, they are cars

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