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21:已知函数f( )=lg(x+1),若f( )=1,则a=()
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1、题目112:--When will Uncle Sam come to see us? --He＇ll visit us this weekend.He () me that by
email.
A. told
B. is told
C. will tell
D. was going to tell
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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48:cos1800=( )
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1、题目20:Alex did the project on community service () better than his classmates.
A. so
B. very
C. too
D. much
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1、题目64:I really need to take more exercise because I＇m () weight.
A. putting off
B. putting on
C. putting down
D. putting away
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1、题目19:函数f( )=x+8(-3<x≦3)的奇偶性是( )
A. 奇函数非偶函数
B. 偶函数非奇函数
C. 奇函数且偶函数
D. 非奇非偶函数
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1、题目57:集合A={x|0≤x<4且x∈Z}的真子集的个数是( )
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1、题目28:已知等差数列{an}中,a1=2,a2=4,则a4=( )
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