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1. Inorganic pesticides remain active on the surfaces of fruits and vegetables for several days after spraying, while organic pesticides dissipate within a few hours after application, leaving the surface of the sprayed produce free of pesticide residue. Therefore, when purchasing from a farm that uses inorganic pesticides, one must be careful to wash the produce thoroughly before eating it to prevent the ingestion of toxins. But one need not worry about ingesting pesticides when purchasing from farms that use only organic pesticides. The argument above assumes that A Consumers are aware of the origins of the produce they purchase. B Produce from farms that use organic pesticides reaches the consumer within hours after it is picked or harvested. C No farm uses both organic and inorganic pesticides. D No pesticide is capable of penetrating the skin of a fruit or vegetable. E The use of either type of pesticide does not increase the cost of produce.
2. The downturn in the economy last year has prompted many companies to make widely publicized layoffs, resulting in thousands of lost jobs. Economists predicted that these layoffs would cause people generally to cut back on their discretionary spending, even if their jobs were secure, in anticipation of coming hard times. However, this prediction has not come to pass, since there has been no increase in the amount of money set aside by the general public in savings accounts. Which one of the following is an assumption on which the argument depends? A The economy has not improved in recent months. B There has been no increase in the amount of money invested in stocks, certificates of deposit, or other savings vehicles. C Salaries have decreased as a result of the economic downturn. D No business sectors have seen growth in recent months. E Those who were laid off have been able to find other employment.
参考答案： DB
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发表于 2021-7-21 06:19:28
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