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【单选题】
关于人体平衡的描述,以下正确的是
A.
支撑面指的是支撑点的接触面积
B.
无论人体处于什么姿势重心都在人体内某个位置
C.
重心位置越高，稳定度越大
D.
平衡角等于某方位平面上的一个稳定角
E.
重力作用线未越出支撑面的边界，可以恢复平衡姿势
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