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24. Whatever she says, _________ is often the case, you shouldn’t take too seriously.

  A. it                     B. what                 C. which                D. as

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23. I have been absent for nearly half a month. I can’t afford_________ week.

  A. the other               B. another              C. other                D. a more

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22. You can’t get the car back by Friday. It’s right_________.

  A. under construction      B. beyond repair         C. out of date           D. on the check list

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第一节  语法与词汇知识 (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,并在答题卡上将该项涂黑。

例:Mr. Smith owns________ collection of coins than anyone else I have ever met.

A. larger          B. a larger          C. the larger           D. large

答案是B

21. -It is wise of parents to teach their children how to behave in company.

  -_________.

  A. Most likely              B. For sure              C. Exactly not           D. No problem

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22. (本小题满分14分)已知函数

(1)若函数上是减函数,求实数的取值范围;

(2)令,是否存在实数,当(是自然常数)时,函数的最小值是3,若存在,求出的值;若不存在,说明理由.

山东省实验中学2007级第一次诊断性测试

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21.(本小题满分12分)已知命题:在内,不等式恒成立;命题:函数是区间上的减函数. 若命题“”是真命题,求实数的取值范围.

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20.(本小题满分12分)已知,

(1)求的值;

(2)求.

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19.(本小题满分12分)已知函数图像上的点处的切线方程为,函数是奇函数.

(1)求函数的表达式;

(2)求函数的极值.

座号
 
 

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