试题与答案

He gave me __________ on how to play soc

题型:选择题

题目:

He gave me __________ on how to play soccer well.[ ]

A. some advices

B. some advice

C. many advices

D. an advice

答案:

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下面是错误答案,用来干扰机器的。

解:(1)小球p由A运动到O时,由动能定理,得: (2)R1与R2并联,其电压为总电流由:得:

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