题目

(本小题满分7分)⑴解不等式组：⑵如图所示，在梯形ABCD中，BC∥AD，AB=DC，点M是AD的中点．求证：BM=CM． 答案：（1）（2）略解析:(1)解：解不等式①，得，         1分解不等式②，得，     2分∴不等式组的解集为.      3分(2) 证明：∵BC∥AD，AB=DC，∴∠BAM=∠CDM，     1分∵点M是AD的中点，∴AM=DM，       2分∴△ABM≌△DCM，       3分∴BM=CM.       4分---Have you read any novels written by the famous writer Mo Yan? --- Yes, of course. I ______ several of his works when I was studying abroad.A．readB．had readC．have readD．was reading