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【单选题】
提高混凝土拌合物的流动性,可采取的措施是( )。A.
增加单位用水量
B.
提高砂率
C.
增加水灰比
D.
在保证水灰比一定的条件下 ，同时增加水泥用量和水的用量
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【单选题】What will the woman do later this evening?
A.
She will prepare for her maths test.
B.
She will prepare for her English test.
C.
She will prepare for her history test.
【单选题】听力原文： Thank you for coming to this meeting for students who will be remaining on campus daring the 10- day winter break. As the dean of students, it is my responsibility to explain the vacation arrang...
A.
Those who will be on campus during a vacation period.
B.
Those who work part-time in the administration offices.
C.
Those who normally live in Butler Hall.
D.
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【单选题】The other day when I saw him _________ on the street, I was greatly shocked to find his hair all white and his face wrinkled.
A.
wandering
B.
to wander
C.
wandered
D.
None of the above
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