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【简答题】
一台单相变压器额定电压为220V／110V，如果不慎将低压侧接到220V电源上，变压器将发生什么现象?
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举一反三
【单选题】What does 'it' refer to in line 42?
A.
facing a different challenge
B.
taking a familiar car journey
C.
acting in the same play every night
D.
working with fellow actors
【单选题】Having been engaged in the line of electric fans for more than 30 years, we are quite familiar with the market here and can supply any quantity _______ the exact specifications of your order.
A.
for
B.
in
C.
at
D.
to
【单选题】It seems that smaller ants perform. more of the _______.
A.
construction tasks
B.
domestic tasks
C.
defensive work
D.
heavy work
【简答题】The reader is undoubtedly familiar with the geometric representation of real numbers by means of points on a straight line.
【单选题】The familiar line “All are brothers within the four seas” is from __________.
A.
the Confucian Analects
B.
the True Story of Ah Q
C.
the Doctrine of Morality
D.
the Book of Songs
【单选题】At what stage of oysters did farmers begin to speed up their growth and fatten them up in the past?
A.
Shell.
B.
Egg.
C.
Larvae.
D.
Spat
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