Tom didn't go upstairs ____ his mom clea

题型:选择题

问题:

Tom didn't go upstairs ____ his mom cleaned up his room.[ ]

A. until    

B. from    

C. in    

D. after

考点:从属连词
题型:选择题

My grandparents like to live in a house     is not very big but bright and comfortabe.

A. which     B. who       C. what

题型:选择题

按图Ⅰ—26所示回答下列问题:

俯视图采用了()剖视。

题型:选择题

下面显示的是查询设计视图的设计网格部分,从下图所示的内容中,可以判断出要创建的查询是( )

题型:选择题

大气过电压

题型:选择题

工程建设保险的种类包括()

A.意外伤害险

B.建筑工程一切险及安装工程一切险

C.职业责任险

D.信用保险

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