在下衬管固井钻水泥塞后，需要下（）将衬管顶部水泥塞处的水泥环，修整成光滑的喇叭口。
A.胀管器
B.外铣鞋
C.内铣鞋
D.套管刮削器
参考答案：B
He quite appreciated ____ to the ball at the palace.[ ]
A. inviting
B. to be invited
C. being invited
D. having invited
When you go to a foreign country, you must try to the customs there in order to recover from the culture shock quickly.
A．deal with
B．adapt to
C．focus on
D． take over
