下列可能存在的事实是a某种机械既可省力又可省功b某物体的质量很大但具有动能却较小c某机械的功率很大但做功很慢d某机械的效率为105 Sketch Coloring Page

下列可能存在的事实是a某种机械既可省力又可省功b某物体的质量很大但具有动能却较小c某机械的功率很大但做功很慢d某机械的效率为105 Template

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anonymous

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tomski下列可能存在的事实是a某种机械既可省力又可省功b某物体的质量很大但具有动能却较小c某机械的功率很大但做功很慢d某机械的效率为105 coloring

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