check01 www.cboe.com/data/PutCallRatio.aspx
回答: 原子中电子受的向心力是什么力?专业说是库伦力,也可以叫电磁力,库伦力是电磁力的微观表现 洛仑兹力没有提供向心力,因为在原子中没有
由 marketreflections
于 2011-07-31 05:42:36
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