【判断题】【消耗次数：1】
一个数据表只能有一个唯一外码。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
在Visual FoxPro中，打开一个数据表文件的命令是
①
OPEN DATABASE数据表文件名
②
USE数据表文件名
③
OPEN数据表文件名
④
CREATE数据表文件名
随机题目
【单选题】
This organization brought Western artists together in
the hope of making more of an impact on the art
community ____any of them could individually and
to promote Western art by women.
①
rather than
②
rather
③
than
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other than
【单选题】
Gone With The Wind is a ____ movie.
①
remarkable
②
perfect
③
indispensable
④
outstanding
【单选题】
The message is clear: Just as tea and banana can’t go
together, ______ should the son of a low class family
expect to marry the daughter of a nobleman.
①
either
②
not
③
neither
④
nor
【单选题】
The ____ Court is the highest court in the United States.
①
Superior
②
Super
③
Supreme
④
Great
【单选题】
If you don’ t go to his birthday party next Friday，_____.
①
so do I
②
so will I
③
nor do I
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nor will I
【单选题】
A culture in which the citizens share similar religious beliefs and values is more likely to have laws that represent the wishes of its people than where citizens come from _________ backgrounds.
①
identical
②
dramatic
③
extensive
④
diverse
【单选题】
_____ is it_____ made Peter_____ he is today?
①
What; that; that
②
That; that; what
③
What; what; that
④
What; that; what
【单选题】
It was during summer breaks that we first taste the satisfaction work that ____ into hard currency.
①
translates
②
transfers
③
transplants
④
transmits
【单选题】
At her word she stood up and walked away, stopping at the window to pull back the curtain and ____.
①
look round
②
look out
③
look up
④
look on