樓主: ronaldcheng
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一個簡單的考題考倒一大片! |
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點評
問題是沒有一大片,自轉(zhuǎn)2圈,,公轉(zhuǎn)1圈是正解
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點評
兩圈自轉(zhuǎn),說3圈的是把公轉(zhuǎn)算自轉(zhuǎn)了,。,。。說白了,,相對運動就得分清楚參考系,,不能單純的說3圈
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