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
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
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
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
22. The Roma originally lived in India in is now Pakistan.
A. northern; when B. north; which
C. northern; what D. north; in which
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)若方程在内有两个不等实根,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:.
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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