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费费逻辑4.5.6
4. The gray squirrel, introduced into local woodlands ten years ago, threatens the indigenous population of an endangered owl species, because the squirrels’ habitual stripping of tree bark destroys the trees in which the owls nest. Some local officials have advocated setting out poison for the gray squirrels. The officials argue that this measure, while eliminating the squirrels, would pose no threat to the owl population, since the poison would be placed in containers accessible only to squirrels and other rodents.
Which one of the following, if true, most calls into question the officials’ argument?
(A) One of the species whose members are likely to eat the poison is the red squirrel, a species on which owls do not prey.
(B) The owls whose nesting sites are currently being destroyed by the gray squirrels feed primarily on rodents. (C) No indigenous population of any other bind species apart from the endangered owls is threatened by the gray squirrels.
(D) The owls that tare threatened build their nests in the tops of trees, but the gray squirrels strip away back from the trunks.
(E) The officials’ plan entails adding the poison to food sources that are usually eaten by rodents but not by other animals.
Questions 5-6
Sales manager: Last year the total number of meals sold in our company restaurants was much higher than it was the year before. Obviously consumers find our meals desirable.
Accountant: If you look at individual restaurants, however, you find that the number of meals sold actually decreased substantially at every one of our restaurants that was in operation both last year and the year before. The desirability of our meals to consumers has clearly decreased, given that this group of restaurants---the only ones for which we have sales figures that permit a comparison between last year and the year before---demonstrates a trend toward fewer sales.
5. If the sales figures cited by the accountant and the sales manager are both accurate, which one of the following must be true?
(A) The company opened at least one new restaurant in the last two years.
(B) The company’s meals are less competitive than they once were.
(C) The quality of the company’s meals has not improved over the last two years.
(D) The prices of the company’s meals have changed over the past two years.
(E) The market share captured by the company’s restaurants fell last year.
6. Which one of the following, if true, most seriously calls into question the accountant’s argument?
(A) The company’s restaurants last year dropped from their menus most of the new dishes that had been introduced the year before.
(B) Prior to last year there was an overall downward trend in the company’s sales.
(C) Those of the company’s restaurants that did increase their sales last year did not offer large discounts on prices to attract customers.
(D) Sales of the company’s most expensive meal contributed little to the overall two-year sales increase.
(E) Most of the company’s restaurants that were in operation throughout both last year and the year before are located in areas where residents experienced a severe overall decline in income last year.
为什么答案是BAE呀？thank you |
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发表于 2003-9-26 22:05:00
