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【单选题】
单个用户使用的数据视图的描述,称为( ),它是用户与 DBS 的接口。A.
模式
B.
外模式
C.
概念模式
D.
内模式
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【单选题】Is there anything more boring than hearing about someone else’s dream? And is there anything more miraculous than having one of your own? The voluptuous pleasure of Haruki Murakami’s enthralling ficti...
A.
It is a fiction written by a head librarian Miss Saeki.
B.
It is an autobiographical novel of Kafka Tamura.
C.
It is a movie adapted from Haruki Murakarni’s book.
D.
It is the name of a hit song in a novel under the same name.
【简答题】切削加工时,刀具和 ( ) 之间的相对运动叫做 ( ) 运动。它可分为( )运动和 ( ) 运动。
【简答题】A．He is not supposed to give the information the woman wants. B．He does not know anything about the Council's plans. C．The woman bas put him in a very difficult position by asking him that. D．The woma...
【简答题】在 HAc 溶液中加入 NaAc ,则 HAc 的离解度 ,溶液 PH 值 ,这种现象叫 。
【单选题】在 HAc 溶液中加入 NaAc ,则 HAc 的离解度 ,溶液 PH 值 ,这种现象叫 。
A.
降低 升高 同离子效应
B.
升高 降低 同离子效应
C.
升高 升高 同离子效应
D.
降低 降低 同离子效应
【简答题】The teacher got so much ______ (satisfy) with what he did.He was too careless to do anything well.
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