尾矿库放矿保证软管（），严禁（）。
A、放矿回头放矿
B、分支放矿独管放矿
C、放矿多管放矿
D、分支放矿放回头矿
参考答案：D
— Does a tiger have a pouch?
— ________________[ ]
A. Yes!
B. No!
C. Yes or no!
I suppose the party ended in a friendly atmosphere, isn’t it()
A. don’t I
B. do I
C. did it
D. didn’t it
