常用的输精管绝育手术方法有哪几种（）
A.钳穿法
B.针头固定小切口法
C.穿线法
D.针挑法
E.化学阻塞法
参考答案：A, B, C, D, E
— Would you please repeat the grammar rules again?
— Of course, but I am sure that you _______ to me carefully, as I have told you twice already. [ ]
A. don't listen
B. wouldn't listen
C. weren't listening
D. aren't listening
“蹴鞠屡过飞鸟上，秋千竟出垂杨里。”请问这句诗是作于什么节日？
