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【单选题】
数据库系统的核心问题是( )A.
数据采集
B.
数据分析
C.
数据管理
D.
数据处理
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举一反三
【简答题】Several years ago, I worked as a truck driver for a company. On Saturdays I usually spent several hours doing something to keep my truck in good condition. One Saturday, as I was cleaning my truck, I ...
【单选题】—_____ —No. What terrible weather! —Yeah. Rain agam. [ ]
A.
Not very nice weather, is it?
B.
How are you today?
C.
What's the weather like today?
D.
Is it terrible weather?
【简答题】It was ______ that we went fishing in the fiver． A．very nice weather B．so nice a weather C．such a nice weather D．such nice weather
【单选题】—Jenny，how did your math exam go? —I thought I ________，but in fact I came in the top 10% in the class.
A.
might have failed
B.
couldn’t have failed
C.
should have failed
D.
mustn’t have failed
【简答题】企业财产保险属于（ ）。
【单选题】I know a little bit about France as my wife and I ______there several years ago.
A.
are going to
B.
went
C.
go
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