1、题目31ID4189点(2,-3)关于原点对称的坐标为( )
A. (2 ,-3)
B. (2 ,3)
C. (-2 ,3)
D. (-2 ,-3)
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1、题目52ID4236在等比数列{an}中,公比q=2,前3项和为14,则a2=( )
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1、题目31ID4345The teacher is already standing here.Do you know when she ()?
A. comes
B. came
C. is coming
D. was coming
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1、题目73ID2767Not until he retired from teaching three years ago () having holiday abroad.
A. he had considered
B. had he considered
C. he considered
D. did he consider
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1、题目32ID1066下列句子中没有语病的一项是
A. 学校开展的感恩活动,掀起了同学间互帮、互助、互学、互进,增进了彼此的友谊。
B. 为了防止失窃事件不再发生,保安部门采取了切实有效的措施。
C. 扬州获得“联合国人居奖”的原因是全市人民共同努力的结果。
D. 能否培养学生的思维能力,是衡量一节课是否成功的重要标准。
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1、题目42ID4191集合{a,b,c}的非空真子集有( )
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1、题目56ID2673My family and I had a( ) () trip in Taiwan because of the typhoon and rainstorm.
A. suitable
B. unpleasant
C. comfortable
D. impatient
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1、题目67ID4216(-2)0=( )
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1、题目43ID2756He () several jackets and finally picked out a blue one.
A. went on
B. took on
C. tried on
D. got on
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1、题目8ID4260等差数列{an}的前3项和为15,若a1=2,则a4=( )
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