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5.-----When __________ and visit our factory next month?

    -----When __________ , I’ll let you know.

    A.will he come; he will come     B.will he come; he comes

    C.does he come; he will come   D.does he come; he comes

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4.Don’t get off until the bus __________.

    A.stopped                                     B.will stop   

    C.will have stopped              D.stops

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3.-----What did the teacher say just now?

    -----Sorry.I didn’t catch it.I ___________ something else.

    A.think about                            B.will think about

    C.was thinking about                       D.thought about

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2.The young lady rushed into the room _______ she heard the noise.

    A.the moment                                   B.the moment when 

    C.immediately when            D.at the moment

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1.It took us quite a long time to get there.It was _________ journey.

    A.three-hour                  B.a three hour    

    C.a three-hour                D.three hours

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19.(10分)已知函数,且

  (1)(2分)求的值;

  (2)(3分)判断函数的奇偶性;

  (3)(5分)判断上的单调性并加以证明

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18.(10分)二次函数满足

  (1)(5分)求的解析式;

  (2)(5分)求在区间上的最大值与最小值。

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17.(8分)设全集U={1,2,3,4,5},集合A=B=,A∩B={2},求的值

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16.(10分)求函数的定义域,并用区间表示。

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15.(10分)若集合

  (1)(3分)当时,求集合 

  (2)(7分)当时,求实数取值范围

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