问题
选择题
马拉着车奔跑,马对车的拉力F和车对马的拉力F′是一对作用力和反作用力,则两力的大小关系是( ) A.F>F′ B.F<F′ C.F=F′ D.无法确定 |
答案
答案:C
马拉着车奔跑,马对车的拉力F和车对马的拉力F′是一对作用力和反作用力,则两力的大小关系是( ) A.F>F′ B.F<F′ C.F=F′ D.无法确定 |
答案:C
阅读理解,下面是一封邀请信和回复,根据内容,回答下列问题。 | ||
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1. Where is the famous film shown ? 2. Is the invitation from Jane to Alice? 3. When does the fil ![]() 4. How long is the film going to last? 5. Would Jane like to see the film ? |