I had as much fun sailing the seas as I no_爱下问搜题

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问题单项选择题

I had as much fun sailing the seas as I now do（）with students.

A. wotking

B. work

C. to work

D. worked

答案

参考答案：A

填空题

已知3A₈^n-1＝4A₉^n-2，则n＝________.

单项选择题

不适于单纯痔切除的是（）

A.内痔二期

B.内痔三期

C.混合痔

D.嵌顿痔

E.环形痔