—______. — Thanks. [ ] A. Why go skating

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问题选择题

— ______.

— Thanks. [ ]

A. Why go skating tomorrow?

B. What about going skating tomorrow?

C. Help yourselves to some soup.

D. Will you have a trip to Guilin?

答案

答案：C

选择题

I have been trying my best to study English ________ I want to have a chance to be a volunteer for the Beijing Olympics. [ ]

A.until

B. because

C. though

D. when

填空题

和文件系统相比，数据库系统的数据冗余度【】，数据共享性【】。