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问题 判断题

小军坐在教室的第2列第7行，用数对表示是（7，2）。[ ]

答案

错误

选择题
— Tom, you didn't come to the party last night?
— I _____, but I suddenly remembered I had homework to do.

A. had to
B. didn't
C. was going to
D. wouldn't
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单项选择题

根据深圳证券交易所配股操作流程，公司股票及其衍生品种在( )期间停牌。

A．R+1日至R+3日
B．R+1日至R+4日
C．R+1日至R+5日
D．R+1日至R+6日
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