题目内容

literal

A. related to literature only
B. well-educated
C. most basic meaning of a word
D. about English letters

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cognitive

A. related to the process of knowing, understanding, and learning sth.
B. related to the process of finding a job
C. related to the process of making a car
D. related to the process of teaching a class

exotic

A. sth. that is unknown to all the people
B. sth. that is colorful
C. sth. that is familiar to all the people
D. sth. in or from a distant foreign country

trivial

A. very particular and outstanding
B. very prominent and well-known
C. not very dull or boring
D. not very interesting, serious, or valuable

关于单相交流调压电路的描述正确的是()

A. 由两个晶闸管串联组成
B. 由两个晶闸管并联组成
C. 由两个晶闸管反并联组成
D. 由两个晶闸管反向串联组成

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