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【单选题】
使用SQL语言的SELECT语句进行分组查询时,如果希望去掉不满足条件的分组,应当使用子句A.
WHERE
B.
GROUP BY
C.
HAVING
D.
ORDER BY
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举一反三
【单选题】What does all of this tell us about is the rise of the East and the ________ of the West.
A.
decline
B.
decrease
C.
default
D.
delay
【简答题】Translate the following text into Chinese. The physical distance between speakers can indicate a number of things and can also be used to consciously send messages about intent. Closeness, for example...
【单选题】下列有奖销售行为属于不正当竞争应予禁止的是( )
A.
《反不正当竞争法》禁止一切有奖销售
B.
抽奖式有奖销售最高奖超过40000元不足50000
C.
抽奖式有奖销售最高奖超过45000元不足50000
D.
抽奖式有奖销售最高奖超过50000
【简答题】Stu dents these days often _1____ (having) a lot of wo rries. Sometimes they _2____(have) problems with schoolwork, and sometimes with 3_____ (they) f r i ends. What can they 4____(doing) about this? ...
【单选题】What type of distribution of the sample mean（样本均值的分布） is most probably being?
A.
Normal distribution
B.
t-distribution
C.
F distribution
D.
binomial distribution
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