1、题目2:已知等差数列 {an} 中,a3+a4+a5=12 ,那么a1+a2+…+a7=( )
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1、题目45:集合{-1,0,1}的子集有( )
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1、题目20:不等式2x+3-x2<0的解集是( )
A. {x|-1<x<3}
B. {x|x>3或x<-1}
C. {x|-3<x<1}
D. {x|x>1或x<-3}
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1、题目55:Theteacher-free exam" means that students take their exams () teachers.Students must
be more honest."
A. without
B. against
C. through
D. /
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1、题目45:--Annie has a () ,and she is going to see her dentist today.
A. cold
B. fever
C. cough
D. toothache
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1、题目66:--Did you watch the football match on TV last night? --I wanted to ,but my mother () her favourite TV programme.
A. watches
B. watched
C. was watching
D. had watched
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1、题目16:cosπ=( )
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1、题目124:--My aunt said she called you yesterday morning,but there was no answer. --Oh,we were at home.Maybe my husband with my daughter and me () my car in the garden.
A. were washing
B. had washed
C. was washing
D. washed
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1、题目61:--I hate vegetables.I () eat them. --But they are good for your health!You should eat them every day.
A. always
B. seldom
C. often
D. usually
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1、题目125:--Would you like to go to the amusement park? --If Jack does,().
A. I go,too
B. so will I
C. neither will I
D. so do I
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