相关Figure1Intheparallel的文学知识

问题详情：(Figure1)IntheparallelogramABCD,AD=2AB,apointMismid-pointofsegmentAD,CE⊥AB,if∠CEM=40°,thenthevalueof∠DMEit( ).   (A)150°   (B)140°   (C)135°   (D)130°【回答】如图,连接CM,...