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【多选题】
单母线分段接线的特点是?A.
当母线发生故障时,仅故障母线段停止工作
B.
两段母线可看两个独立的电源,提高了供电可靠性,可对重要用户供电
C.
当一段母线故障或检修时,必须断开接在该段母线上的所有支路,使之停止工作
D.
任一支路断路器检修时,该支路可以继续工作
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举一反三
【简答题】vt. 使得,致使 r-
【简答题】Have you not heard the President over and over again address some of the major ch______ that exist in the present era?
【简答题】下列卤化硼分子中,大 π 键最弱的是(
) (8.0分)A. BF 3 B. BCl 3 C. BBr 3 D. BI 3
【单选题】Why are numerals the most difficult for interpreters?A. Multi-digits carry 50 times more information than common semantic ones.B. Multi-digits carry 10 times more information than common semantic ones...
A.
M ulti-digits carry 50 times more information than common semantic ones.
B.
M ulti-digits carry 1 0 times more information than common semantic ones.
C.
M ulti-digits carry 2 0 times more information than common semantic ones.
D.
M ulti-digits carry 8 0 times more information than common semantic ones.
【简答题】The government couldn't rest on its present conditions and must press ahead with major policy ch______.
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