选择题：I heard that you really had a wonderful time at Jo

题目内容：

I heard that you really had a wonderful time at John.s birthday party, _____?

选择一项：

A.
didn.t I

B.
didn.t you

C.
hadn.t you

参考答案：

1im x→0y→0 3xy/2xy+1-1=()

1im x→0y→0 3xy/2xy+1-1=()A. 不存在B. 3C. 6D.

分类：国家开放大学管理英语3. 题型：选择题

7. Tommy: Mommy, when will we have dinner? I’m starving.Mother: ____.We have to

分类：国家开放大学管理英语3. 题型：选择题

Jump from a building.选择一项：A.B.C.

分类：国家开放大学管理英语3. 题型：选择题

— When do we have to pay the bill?—____ December 30.选择一项：A.ByB.InC.During

分类：国家开放大学管理英语3. 题型：选择题

设D为x+y≤1,则∫∫D1/1-x-ydxdy=()A.0B.πC.2πD.4π

分类：国家开放大学管理英语3. 题型：选择题