题目

如图，AB∥CD，∠1＝∠2，求证：AM∥CN 答案：【答案】详见解析.【解析】只要证明∠AEM=∠ECN，根据同位角相等两直线平行即可证明.证明：∵AB∥CD，∴∠EAB=∠ECD，∵∠1=∠2，∴∠EAM=∠ECN，∴AM∥CN．Tom and I both got an e-dictionary. His e-dictionary is cheaper than _____.A.me B.my C.myself D.mine