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知识点一,学业分层测评,知识点二,1/27,2/27,点 电 荷,小得多,带电荷点,理想化,3/27,4/27,5/27,6/27,7/27,8/27,9/27,10/27,11/27,12/27,13/27,点 电 荷 间 相 互 作 用 规 律,电荷量乘积,距离,静电力,真空,14/27,k,9.0,10,9,Nm,2,/C,2,吸引力,排斥力,15/27,16/27,17/27,18/27,19/27,20/27,21/27,22/27,23/27,24/27,25/27,26/27,27/27,
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