题目内容

All flights in and out Tianhe Airport came to a ______ because of the snowstorm.

A. stoppage
B. closure
C. silence
D. standstill

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A mother-in-law should not ______ on the privacy of a newly-married couple.

A. invade
B. intrude
C. violate
D. encroach

设有关系R和S，在下列的关系运算中，不要求：“R和S具有相同的元数，且它们对应属性的数据类型也相同”的运算是______。

A. R∪S
B. R∩S
C. R-S
D. R×S

It is impossible to ______ these points of view; they are too different.

A. unite
B. coincide
C. compromise
D. reconcile

Oracle的数据仓库解决方案是Oracle OLAP产品，其中服务器端的工具是______。

A. Oracle Express Server
B. Oracle Express Objects
C. Oracle Express Analyzer
D. Oracle Webserver