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【多选题】
10kV变配电系统的调试工作主要是对过流保护装置、（）、零序保护装置等进行调试和系统的运行。A.
差动保护装置
B.
欠压保护装置
C.
继电保护装置
D.
瓦斯保护装置
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举一反三
【单选题】—How do you study English? —I study English ______ talking with foreign students. [ ]
A.
by
B.
in
C.
at
D.
on
【单选题】Canada is a country many different nationalities as well as one with foreign immigrants the majority of its population.
A.
making up of; occupied with
B.
consisting of; making up
C.
made up of; consists of
D.
consisted of; taking up
【简答题】一位十六进制数可以用 位二进制数来表示。
【简答题】A．To do business with people speaking that language. B．To better understand a foreign country. C．To read books in that language. D．To compare it with their mother tongues.
【简答题】中国古代的公共关系思想以“礼之用,和为贵”为特征,以()为主要行为规范。
【简答题】中国古代公共关系思想特征?
【单选题】Although the official denied any possible joint ventures with foreign players, ( ) said the entry of more foreign tobacco is inevitable.尽管这个官员否认了与外国烟草业同行建立合资企业的可能性，但业内人士称更多的外国烟草涌进中国是不可避免的。
A.
insiders
B.
inside
C.
outside
D.
ourtsiders
【单选题】He practises speaking English by having conversations with foreign friends.
A.
交谈
B.
会议
C.
约会
D.
见面
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