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【多选题】
下面有的叙述错误的是（）。A.
不同记录可以具有重复主键值或空值
B.
一个表中的主键可以是一个或多个字段
C.
在一个表中的主键只可以是一个字段
D.
表中的主键的数据类型必须定义为自动编号或文本
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反馈参考答案：
举一反三
【简答题】物流活动可以创造___效用、___效用和___效用。
【单选题】Which is not the one the waitress suggest Louisa go to?
A.
Stalls along the stands
B.
The Pig in A Poke
C.
The Blue Badge area
【单选题】Which "suggest" is the same as that in the passage?
A.
I suggest you have a private conversation with your husband about that—not about why your daughter confided in him and the boys, but about why she avoided you.
B.
The symptoms suggest he has got a minor heart attack.
C.
It has been suggested that bright children should take their exams early.
D.
Are you suggesting that I'm lazy?
【单选题】This excerpt suggest that Hawthrone's philosophical position includes which one of the following ideas?
A.
Man's first impulse is to do good.
B.
Man creates his own reality.
C.
Man is responsible for his actions.
D.
Man is predisposed to do evil
【单选题】The phrases 'which is which' and 'what is what' suggest ______.
A.
the Finns are foolish
B.
the Finns are simple-minded
C.
the Finns take things seriously
D.
the Finns don't take precautions against others
【多选题】关于毛泽东思想的历史地位表述正确的有
A.
马克思主义中国化的第一个重大理论成果
B.
中国革命和建设的科学指南
C.
中国特色社会主义理论体系的开篇之作
D.
中国共产党和中国人民宝贵的精神财富
【单选题】If the guest would like more milk inside,which one will you suggest?
A.
Latte
B.
Mocha
C.
Macchiato
D.
Iced Mocha
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