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![abcd四个丝线吊着的通草小球,若ab互相吸引,bc互相排斥,cd 互相吸引,ad互相靠近时,两球之间( )A互相吸引 B互相排斥 C无作用 D也可能吸引也可能排斥也可能无作用我儿子非要说要是a带电,b不](/uploads/image/z/2687915-11-5.jpg?t=abcd%E5%9B%9B%E4%B8%AA%E4%B8%9D%E7%BA%BF%E5%90%8A%E7%9D%80%E7%9A%84%E9%80%9A%E8%8D%89%E5%B0%8F%E7%90%83%2C%E8%8B%A5ab%E4%BA%92%E7%9B%B8%E5%90%B8%E5%BC%95%2Cbc%E4%BA%92%E7%9B%B8%E6%8E%92%E6%96%A5%2Ccd+%E4%BA%92%E7%9B%B8%E5%90%B8%E5%BC%95%2Cad%E4%BA%92%E7%9B%B8%E9%9D%A0%E8%BF%91%E6%97%B6%2C%E4%B8%A4%E7%90%83%E4%B9%8B%E9%97%B4%EF%BC%88+%EF%BC%89A%E4%BA%92%E7%9B%B8%E5%90%B8%E5%BC%95+B%E4%BA%92%E7%9B%B8%E6%8E%92%E6%96%A5+C%E6%97%A0%E4%BD%9C%E7%94%A8+D%E4%B9%9F%E5%8F%AF%E8%83%BD%E5%90%B8%E5%BC%95%E4%B9%9F%E5%8F%AF%E8%83%BD%E6%8E%92%E6%96%A5%E4%B9%9F%E5%8F%AF%E8%83%BD%E6%97%A0%E4%BD%9C%E7%94%A8%E6%88%91%E5%84%BF%E5%AD%90%E9%9D%9E%E8%A6%81%E8%AF%B4%E8%A6%81%E6%98%AFa%E5%B8%A6%E7%94%B5%EF%BC%8Cb%E4%B8%8D)
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