根据短文内容连线。This is the map of China. In the north, it’s Harbin. Shanghai is in the east. Sanya is in the south. Lhasa is in the west.Shanghai northSanya southHarbin west Lhasa east 答案:【答案】Shanghai-east Sanya-south Harbin-north Lhasa- west【解析】略计算:tan45°•cot45°= .