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【单选题】
旁路断路器的作用是( )A.
当出线断路器检修时，可代替该出线断路器工作
B.
可以代替断路器工作
C.
保证母线检修时，线路不停电
D.
可以代替分段断路器工作
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举一反三
【单选题】The horizontal component of velocity remains _________ during a free-flight motion.
A.
zero
B.
constant
C.
at
D.
at
【简答题】He was ashamed of ______ (他那样对年迈的母亲说话).
【单选题】She heard the blustering, defensive note in his voice and knew that he was ashamed.
A.
protective
B.
ambitious
C.
aggressive
D.
slashing
【单选题】He was ashamed ____ to pass the exam.
A.
to fail
B.
to have failed
C.
to be failed
D.
to be failing
【单选题】给出如下代码,可以输出“python”的是 s = 'Python is beautiful!'
A.
print(s[:–14])
B.
print(s[0:6].lower())
C.
print(s[0:6])
D.
print(s[–21: –14].lower)
【简答题】He was ashamed of ______ (他那样对年迈的母亲说话).
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