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【单选题】
串联型稳压电源中，产生基准电压的部分是（）A.
比较放大器
B.
稳压管电路
C.
调整管
D.
采样电路
E.
不知道
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反馈参考答案：
举一反三
【单选题】I received a letter， poor spelling made me think it was written by a child．
A.
which
B.
that
C.
whose
D.
who
【判断题】Test takers are penalized for writing more than the stated number of words, poor spelling and grammar.
A.
正确
B.
错误
【单选题】The typist checked the spelling carefully in order to ______ all the spelling mistakes.
A.
abandon
B.
diminish
C.
eliminate
D.
withdraw
【单选题】A résumé with poor grammar or spelling errors implies that the applicant ________.
A.
will not be a qualified employee
B.
is a reliable person
C.
is not interested in the job
D.
does not have higher degrees
【单选题】I failed to pass the English exam for my poor spelling. Oh,__________.If you agree,I’d like to help you with your spelling.
A.
nothing
B.
I am sorry to hear that
C.
I’m afraid so
D.
your spelling is so poor
【单选题】Everything about your composition is perfect ______ the poor spelling.
A.
except
B.
except for
C.
apart from
【判断题】There might be good, average and poor spellers in a class. An old-fashioned spelling test is usually a good idea to tackle their spelling needs.
A.
正确
B.
错误
【单选题】小提琴协奏曲《梁山伯与祝英台》以梁祝故事中 “ 相爱 ” 、 “ 抗婚 ” 、 “ ( ) ” 三个主要情节,作为呈示部、展开部、再现部进行交响性概括、推进的。
A.
结婚
B.
化蝶
C.
离别
D.
英台出嫁
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