栏目索引1.在平面直角坐标系xOy中,已知点A(1,m+1),B(a,m+1),C(3,m+3),D(1,m+a),m>0,a>1.若AD∥BC,判断四边形ABCD的形状,并说明理由.解析四... 2024-08-176171.35 MB22页270
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