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【单选题】
《建筑消防安全检测评价技术规程》规定，消防水泵出水管上应设置试验和检查用的压力表和放水阀，当存在超压可能时，出水管上应设置（）A.
防超压设施
B.
防泄漏设施
C.
防雷设施
D.
防静电设施
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举一反三
【简答题】What does the writer mean by saying that college is “a different ball ”?
【单选题】What is the best definition of the phrase 'a of two halves'?
A.
A different ball should be used in each half of the match.
B.
Anything can happen in football.
C.
Players shouldn't argue with the referee.
D.
Each team should use its own ball for part of the match.
【单选题】It is a whole new ball for freshmen to go to college.
A.
a completely different situation
B.
a completely different
【单选题】After class my friend, Jason, ____ different ball s at school. [ ]
A.
plays a part
B.
takes an active part in
C.
is actively in
D.
joins
【单选题】Ground ball is ______.
A.
a different way of playing baseball.
B.
invented by Philadelphia' s Overbrook School.
C.
the most elementary thing for athletes.
D.
a new sport enjoyed by all Americans.
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