如图所示一小球贴着光�曲面自由�下依次经过abc三点.以下表述不正确的是 A.若以地面为参考平面小球在b点的重力势能比c点大b Template




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tomski如图所示一小球贴着光�曲面自由�下依次经过abc三点.以下表述不正确的是 a.若以地面为参考平面小球在b点的重力势能比c点大b coloring