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26. If Sanlu Group      melamine to the milk, the babies      too much from kidney stone.

    A. didn’t add; would not suffer      

B. hadn’t added; wouldn’t have suffered

C. hasn’t added; wouldn’t have suffered

D. hadn’t added; would have suffered

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25. - How do you deal with the disagreement between the company and customers?

- The key     the problem is to meet the demand     by the customers.

    A. to solving; making            B. to solving; made

C. to solve; making                  D. to solve; made

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24. - Look! It       again.

- Yes. This in the third rain we       this month.

    A. will rain; shall we          B. is raining; have had

C. rains; had                 D. is going to rain; have had

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23. The H1N1 flu is spreading across the world at a frightening rate, with thousands of people     every day.

    A. to be infected      B. be infected     C. been infected      D. being infected

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22. The Roma originally lived in      India in      is now Pakistan.

    A. northern; when                   B. north; which       

C. northern; what                D. north; in which

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20. 已知函数图象上一点P(2,f(2))处的切线方程为

(Ⅰ)求的值;

(Ⅱ)若方程内有两个不等实根,求的取值范围(其中为自然对数的底,);

(Ⅲ)令,如果图象与轴交于AB中点为,求证:

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19. 甲方是一农场,乙方是一工厂.由于乙方生产须占用甲方的资源,因此甲方有权向乙方索赔以弥补经济损失并获得一定净收入,在乙方不赔付甲方的情况下,乙方的年利润(元)与年产量(吨)满足函数关系.若乙方每生产一吨产品必须赔付甲方元(以下为赔付价格).

(1)将乙方的年利润(元)表示为年产量(吨)的函数,并求出乙方获得最大利润的年产量;

(2)甲方每年受乙方生产影响的经济损失金额(元),在乙方按照获得最大利润的产量进行生产的前提下,甲方要在索赔中获得最大净收入,应向乙方要求的赔付价格是多少?

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