试题与答案

带正电的物体靠近悬挂着的通草球时,通草球被吸引,则通草球一定( ) A.带正电荷

题型:选择题

题目:

带正电的物体靠近悬挂着的通草球时,通草球被吸引,则通草球一定(  )

A.带正电荷

B.带负电荷

C.不带电

D.不带正电荷

答案:

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