对于质量一定的物体下列叙述中正确的是 A.物体的动能�生变化其动量不一定变化b.物体的动能变化其动量必定变化c.物体的动量�生变化 Template




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tomski对于质量一定的物体下列叙述中正确的是 a.物体的动能�生变化其动量不一定变化b.物体的动能变化其动量必定变化c.物体的动量�生变化 coloring