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【单选题】
按来源分,杂质可分为( )A.
一般杂质与特殊杂质
B.
信号杂质与有害杂质
C.
有机杂质与无机杂质
D.
无色杂质与有色杂质
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举一反三
【单选题】When the two students dropped out, no one took much notice because______.
A.
they had long lost heart in class performance
B.
they were absent from class too often
C.
they didn't get on well with other students
D.
they were so much cut off from the rest of the class
【简答题】Paragraph 8__________
【简答题】It took two long sittings to record all the texts.
【单选题】听力原文：W: I've been sitting in the lobby for two solid hours. What took you so long? M: Oh, I'm sorry about that, Sue. I didn't think it would be so complicated. Q: What does the man imply? (19)
A.
He thought it would be move difficult.
B.
He doesn't think the woman's remark is appropriate.
C.
It was farther than he thought it would be.
D.
It wasn't as easy as he thought.
【单选题】The pencil is _______ that one.
A.
as two time as long
B.
as long two times as
C.
two times as long as
D.
long as two times than
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