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举报参考答案：
举一反三
【单选题】空载流量是指（）。
A.
机组在规定的转速和水头下半载运行时的流量
B.
机组在规定的转速和水头下满载运行时的流量
C.
机组在规定的转速和水头下空载运行时的流量
D.
机组停机时渗漏的流量
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers
相关题目：
【单选题】空载流量是指（）。
A.
机组在规定的转速和水头下半载运行时的流量
B.
机组在规定的转速和水头下满载运行时的流量
C.
机组在规定的转速和水头下空载运行时的流量
D.
机组停机时渗漏的流量
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers
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