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【单选题】
在创建数据库表结构时，为了同时定义实体完整性可以通过指定哪类索引来实现A.
唯一索引
B.
主索引
C.
复合索引
D.
普通索引
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反馈参考答案：
举一反三
【判断题】H ow physically close or distant two people stand when they talk tells a great deal about their relationship .
A.
正确
B.
错误
【单选题】We can conclude from the passage that the author ______.
A.
was really physically sick
B.
was physically sick, but not serious
C.
was not really physically sick
D.
needed her mother's comfort
【简答题】A．monetarily B．economically C．mentally D．physically
【简答题】A．largely B．inteltly C．mentally D．physically
【单选题】He was healthy ( ) and ( ) .
A.
physical, mental
B.
physically, mentally
C.
body, mind
D.
bodily, mindedly
【单选题】— Is it better to be physically attractive or intelligent? — .
A.
Yes, it is very attractive.
B.
No, it is not attractive.
C.
For me, be intelligent is better, but that depends on.
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