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空间中的角是高考命题的热点之一,在高考试题中,年年有,次次出.解决这些问题的关键是理解线线角,线面角,面面角的定义,依定
The corner in space is one of the hot spots of the college entrance examination proposition. In the high exam questions, there are times every year. The key to solving these problems is to understand the definitions of line angles, line angles, and face angles.