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【单选题】
差动保护只能在被保护元件的内部故障时动作,而不反应外部故障,具有绝对( )。A.
选择性
B.
速动性
C.
灵敏性
D.
可靠性
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举一反三
【单选题】Originally, the World-Wide Web was designed as information medium for (71) research teams. A deliberately simple implementation model was chosen to make it as simple as possible for authors to (72) do...
A.
all
B.
world
C.
distributed
D.
internet
【单选题】Originally, the World-Wide Web was designed as information medium for(71) research teams. A deliberately simple implementation model was chosen to make it as simple as possible for authors to(72) docu...
A.
all
B.
world
C.
distributed
D.
internet
【简答题】CITES全称为：______。
【简答题】Originally, the World-Wide Web was designed as information medium for （1）research teams. A deliberately implementation model was chosen to make it as as possible for authors to （2）docume...
【简答题】Originally, the World-Wide Web was designed as information medium for （）research teams. A deliberately implementation model was chosen to make it as as possible for authors to （）document...
【单选题】The author cites the latest research study in order to show that _____.
A.
students are studying harder in college
B.
most students have part-time jobs now
C.
stress continues to the time of graduation
D.
students only feel stressed while in school
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