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【判断题】
上级低压断路器的保护特性与下级低压断路器的保护特性应满足保护选择性的要求。A.
正确
B.
错误
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举一反三
【单选题】Tom shut everybody out of the study ___ he could prepare for the coming exam.
A.
which
B.
when
C.
so that
D.
as if
【简答题】我一进来,她就把书丢在一边,站了起来,似乎很生气。(toss)
【单选题】The fact that some style. is called a 'fashion' implies a social recognition that is temporary and will______ be replaced by a new style.
A.
rarely
B.
hardly
C.
eventually
D.
especially
【单选题】听力原文：W: Tom, could I bother you for a moment? I need someone to return this book to the library for me. M: That's no bother at all. I'm on my way there now. Q: What will the man probably do? (19)
A.
He will have a talk with the woman.
B.
He will go home now.
C.
He will go to the library.
D.
He will read the book for the woman.
【单选题】听力原文：W: Tom, could I bother you for a moment? I need someone to return this book to the library for me. M: That's no bother at all. I'm on my way there now. Q: What will the man probably do next? (14)
A.
Stop bothering the woman.
B.
Take the woman's book with him.
C.
Show the woman how to get to the library.
D.
Ask someone else to go to the library.
【单选题】听力原文：W: Tom, could I bother you for a moment? I need someone to return this book to the library for me. M: That's no bother at all. I'm on my way there now. Q: What will the man probably do next? (17)
A.
Stop bothering the woman.
B.
Take the woman's book with him.
C.
Show the woman how to get to the library.
D.
Ask someone else to go to the library.
【简答题】一个系统能够接收的频率是有限的,人们把系统能够接受的从最低频率到最高频率之间的范围称为系统的()。
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