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【多选题】
混凝土常用的外加剂有?A.
减水剂
B.
引气剂
C.
缓凝剂
D.
早强剂
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举一反三
【单选题】—Mike, please don’t make so much noise. —Pardon? —I ______ you not to make so much noise.
A.
tell
B.
had told
C.
told
D.
will tell
【单选题】Please don ’ t make ______; listen to the teacher. A. so much noise B. much so noise C. so many voices D. many so voices
A.
１
B.
２
C.
３
D.
４
【单选题】Please don ’ t make so much noise.I _____ hear the speaker very well.
A.
needn ’ t
B.
mustn ’ t
C.
can ’ t
【单选题】Please don ’ t make so much noise. I _______ hear the speaker very well.
A.
needn ’ t
B.
can ’ t
C.
mustn ’ t
D.
woudn't
【单选题】Don－t do any other things while you are doing your homework． So please_________your
A.
14． Don-t do any other things while you are doing your homework． So please_________ your MP3． A． turn up
B.
turn down
C.
turn on
D.
turn off
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