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【单选题】
GROUP BY 子句用来指定( )。A.
查询结果的分组条件
B.
组或聚合的搜索条 件
C.
限定返回行的搜做条件
D.
结果集的排序方式
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反馈参考答案：
举一反三
【判断题】Sponsor of a conference is the institution that initiates the conference while organizer of the conference is entrusted by the sponsor to organize the conference.
A.
正确
B.
错误
【单选题】Manufacturing companies spend millions of pounds trying to convince customers that their products are ______ to those of others.
A.
better
B.
best
C.
super
D.
superior
【判断题】Sponsor of a conference is the institution that initiates the conference while organizer of the conference is entrusted by the sponsor to organize the conference.
A.
正确
B.
错误
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