两个平面垂直,则一个平面内的任意一条直线都垂直另一个平面,
两个平面垂直,则一个平面内的任意一条直线都垂直另一个平面,对吗答案：不对.如,可以在黑板上画一条和地面平行的直线.
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反了，应该是一直线垂直一平面，那直线所在平面都垂直于直线垂直的平面
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如果一条直线 和一个平面 内的任意一条直线都垂直,我们就
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