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25. I attended his lecture, most of ________ he said had nothing to do with my subject, though..

 A. which B. what C. that D. all

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24. The little girl cried out loud__________ the terrible sight caused by the landslides.

 A. by B. on C. over D. at

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23. If only I ________in space in a manned spaceship some day like Yang Li-wei!

 A. shall be able to fly         B. could fly

 C. can fly             D. should have flown

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22. It was half past eleven ________she came back last night, which made her mother angry____.

A. when B. that C. while D. since

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    从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

21. I’m sorry to have forgot to pay back the money you lent me a month ago-________.

 A. No hurry B. Forget it C. That's right D. Take it easy

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22. (本小题满分14分)已知双曲线C的中心在原点,抛物线y2=2x的焦点是双曲线C的一个焦点,且双曲线过点(1,),

(1)求双曲线的方程;

(2)设直线l:y=kx+1与双曲线C交于A、B两点,试问:①k为何值时;

②是否存在实数k,使A、B两点关于直线y=mx对称(m为常数),若存在,求出k的值;若不存在,请说明理由.

长泰一中2009-2010学年第一学期期中考试

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21.(本小题满分12分)以数列的任意相邻两项为坐标的点均在一次函数的图象上,数列满足条件:

⑴求证:数列是等比数列;

⑵设数列的前项和分别为,若,求的值.

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20.(本小题满分12分)已知实数,函数

(1)  若,求函数的图像在点(-1,4)处的切线方程;

(2)求函数的单调区间;

 (3)  若有极大值2求实数的值.

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