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【单选题】
第 9 题(本题:1分) 数据库设计中反映用户对数据要求的模式是( )。A.
内模式
B.
概念模式
C.
外模式
D.
设计模式
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【单选题】某理想气体B,经恒温膨胀、恒容加热、恒压冷却3步完成一个循环,气体吸热24000J,则该循环过程的△U、W及△H为( )
A.
)△U=△H=0,W=-24000
B.
△U=0,△H≠0,W=24000J
C.
△U,△H,W不能确定
D.
△U=0,△H=24000J,W无法确定
【简答题】阅读理解。 Even a child knows that nodding the head means 'yes'. But some people will probably be puzzled when the y first come to India. When they talk to an Indian, he often shakes his head. They might t...
【单选题】Even a child knows that nodding head means 'Yes'. But some people would probably【56】when they first came to India. When they talked to【57】Indian, he would often shake his head. They【58】think that the ...
A.
puzzled
B.
be puzzled
C.
puzzle
D.
be puzzling
【简答题】Even a child knows that nodding the head means' Yes'．But some people will probably be puzzled（迷惑的）when they first come to India．When they talk to an Indian，he often shakes his head．They might think th...
【简答题】企业成立周年庆典致辞( 1 ) УРОК 2 Поздравительная речь на юбилее предприятия (Часть 1) 课堂实践 1 俄译汉 Я искренне вас поздравляю с этой датой. КамАЗ -- это особое имя на промышленной карте нашей страны. Как известно,...
【单选题】Even a child knows that nodding head means “Yes”.But some people would probably 1when they first came toIndia.When they talked to 2Indian，he would often shake his head.They 3think that theIndiadid not...
A.
puzzled
B.
be puzzled
C.
puzzle
D.
be puzzling
【简答题】Even a child knows that nodding the head means “Yes”. But some people will probably be puzzled when they first come to India. When they talk to an Indian, he often shakes his head. They might think th...
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