一人站在电梯上随电梯一起匀速上升如图所示则下列关于人的受力分析正确的是 A.人受到重力竖直�上的支持力b.人受到重力竖直�上的支持 Template




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tomski一人站在电梯上随电梯一起匀速上升如图所示则下列关于人的受力分析正确的是 a.人受到重力竖直�上的支持力b.人受到重力竖直�上的支持 coloring