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【单选题】
数据库管理系统能够实现对数据库中的数据进行修改、插入、删除、查询、统计等操作,这种功能称为( )。A.
数据管理功能
B.
数据操纵功能
C.
数据控制功能
D.
数据定义功能
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举一反三
【简答题】A．The rising price of gas. B．People's concern for air pollution. C．The growth of bicycle production. D．The high quality of bicycles.
【多选题】What's the evidence of people’s concern for others?
A.
Mayblum shared his ripped T-shirt with his colleagues .
B.
Mayblum went back to look for his trading partner.
C.
Ramos helped panicked workers into a stairwell.
D.
Ramos refused to helped any one.
【简答题】目标管理的英文________。
【单选题】After the ___of 17 British passengers, Mr. Blair continued to express his concern over the safety of the other passengers still on board the hijacked airliner.
A.
relay
B.
release
C.
convey
D.
transfer
【简答题】CAS链路的概念。
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