如图所示将一木块放在弹簧上用手压木块弹簧被压缩.松开手木块竖直�上飞起直到最高点.下列说法正确的是 A.手压木块时手对木块的压力 Template




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tomski如图所示将一木块放在弹簧上用手压木块弹簧被压缩.松开手木块竖直�上飞起直到最高点.下列说法正确的是 a.手压木块时手对木块的压力 coloring