1、题目55:等比数列中,a2=2,a3=16,则公比q为( )
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1、题目130:() wake up your sister,Ben.She needs a good sleep.
A. Don＇t
B. Doesn＇t
C. Aren＇t
D. Can＇t
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1、题目38:cos900=( )
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1、题目60:已知集合A={( )|x+2y=6}, B={( )|x-y=3},那么A∩B为( )
A. x=4,y=1
B. {(4,1)}
C. {4,1}
D. (4,1)
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1、题目80:Franklin told them all () to be in Britain again.
A. how happy was he
B. how happy he was
C. how was he happy
D. how he happy was
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1、题目53:
( )
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1、题目50:
( )
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1、题目8:设a,b∈R,集合{1,a+b,a}={0,b,b/a},则b-a等于( )
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1、题目73:Mr.Smith told his son () the football match because of the exam.
A. not to watch
B. to not watch
C. not watching
D. doesn＇t watch
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1、题目34:设函数f( )=2x-5,f(x+1)=( )
A. 4x-5
B. 2x-8
C. 2x-3
D. 2x-4
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