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25. ------Have you been wasting time on computer games again?

  ------______. I’ve been studying a lot and I need a break.

  A. No way    B.Not really    C.I don’t agree   D.I couldn’t agree more

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24. The hunter calmly picked up his gun,took the aim and fired, ______ the beast.

   A.bringing down B.pulling down  C.falling dowing  D.putting down

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23.Hearing that most of the members voted against her, she ______ a smiile.

   A.wore     B. managed   C.performed  trolled

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22. It is a strange phenomenon that some young people today think it is their parents’responsibility to earn money and_______ to spend it.

   A.them     B.they     C.their     D.theirs

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第一节     单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

21.. Department of Homeland Security and CIA produced ______ joint report on Monday warning that ______ next 911 could in fact occur on ______ different date.

   A.the; a; the   B.a; the; a   C./; the; the   D.a; /; the

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24.几何证明选讲(题略)

解:

 

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23. 已知对于任意非零实数,不等式恒成立,求实数的取值范围。

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22.已知曲线C的极坐标方程是,以极点为平面直角坐标系的原点,极轴为X轴的正半轴,建立平面直角坐标系,直线的参数方程是:,求直线与曲线C相交所成的弦的弦长.

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