High school students studying high school physics well can answer them


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送交者: HunHunSheng 于 2007-01-22, 14:07:31:

回答: 关于星星转的三个为什么,你能答上来几个? 由 lll 于 2007-01-22, 13:57:07:

hese were classic problems which can be answered in even high school physics course



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