皮皮学，免费搜题
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【单选题】
表的主键约束是用来实现数据的A.
实体完整性
B.
参照完整性
C.
域完整性
D.
都不是
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】John went to the ______ to buy a pair of shoes yesterday.
A.
shoes store
B.
shoes’ store
C.
shoe’s store
D.
shoe store
【简答题】完全信息静态博弈中的混合策略可以被解释成不完全信息博弈的纯策略贝叶斯纳什均衡。
【单选题】Invest a good pair of shoes and make sure the shoes are______.
A.
expensive
B.
comfortable
C.
tough
D.
light
【单选题】What is Selene Parekhs answer to the best shoes to wear?
A.
Shoes that are customized to individuals.
B.
Shoes that fit to a person's wear pattern.
C.
Shoes that are both cheap and comfortable.
D.
Shoes that cause no pressure to the feet.
【单选题】—What are they used for, Michael? —You can change the style of your shoes and make the shoes from casual to dressy. [ ]
A.
to go
B.
going
C.
go
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