一人站在电梯上随电梯一起匀速上升如图所示则关于人的受力分析的下列叙述正确的是 A人受到重力竖直�上的弹力以及水平�右的�擦力b人 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则关于人的受力分析的下列叙述正确的是 a人受到重力竖直�上的弹力以及水平�右的�擦力b人 coloring