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【单选题】
将一个点电荷(忽略重力)无初速地放入静电场中,关于电荷的运动情况,正确的是:A.
电荷一定顺着电场线加速运动；
B.
电荷一定逆着电场线加速运动；
C.
到底是顺着还是逆着电场线运动，由电荷的正负决定；
D.
以上说法均不正确。
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