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【简答题】
据依一个关系内部属性与属性之间的一种约束关系,最重要的数据依 _____ 和 _____ 。
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【单选题】—Which is the biggest number of the four? —________. [ ]
A.
One-third
B.
Two-thirds
C.
A half
D.
A quarter
【简答题】通用航空服务，是指为专业工作提供飞行服务的业务活动，包括( ) A航空摄影 B航空测量 C航空吊挂播洒 D航空降雨等
【单选题】After several nuclear disasters, a______has raged over the safety of nuclear energy.
A.
quarrel
B.
suspicion
C.
verdict
D.
controversy
【简答题】阅读理解。 The meeting lasted three hours. Mr. Jackson looked at the clock on the wall. It was a quarter to eight. 'The last bus started fif minutes ago,' thought the man, 'It means I'll have to stay i...
【单选题】航空转运作业流程中的邮件总包接收包括接收航方交来的航空邮件总包、接收区域快速邮路交来的发航邮件总包、接收局站盘驳汽车的邮件和（）。
A.
接收火车转航的邮件
B.
接收支局交来的邮件
C.
接收其它各类邮件
D.
接收信息
【简答题】Three rich ladies met every day by the river. They sat there and talked the w 71 day. Once, they quarreled. One of them said, 'Look, how white and beautiful my hands are!' A 72 one said, 'My hands...
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