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  • Newton’sLaws 日期:2011-09-20 09:27:00 来源:作文地带 好评:优秀英语作文

    作文地带导读:In response, the Earth pushes your feet forward, which is the force that moves you on your way.  The second example may seem odd: the Earth doesn’t move upward when you drop a brick. But recall Newton’s Second Law: the acc...

    The Newton Laws net stuff

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