T-3-Q16.
In response to mounting public concern, an airplane manufacturers implement a program with well-publicized goal of reducing by half the total yearly amount of hazardous waste generated by its passenger-jet division. When the program began in 1994, the division’s hazardous waste was 90 pounds per production worker, last year it was 40 pounds per production worker. Clearly, therefore, charges that the manufacturer’s program has not met its goal are false.
Which of the following is an assumption on which the argument depends? A-E A. the amount of nonhazardous waste generated each year by the passenger-jet division has not increased significantly since 1984 B. at least as many passenger jets were produced by the division last year as had been produced in 1994 C. since 1994, other divisions in the company have achieved reductions in hazardous waste output that are at least equal to that achieved in the passenger-jet division. D. The average number of weekly hours per production worker in the passenger-jet division was not significantly greater last year than it was in 1994. E. The number of production workers assigned to the passenger-jet division was not significantly less in 1994 than it was last year. T-3-Q24.
Each year red-winged blackbirds stop in a certain region of Midland
Province on their spring and fall migration. In the fall, they eat a significant portion of the province’s sunflower crop. This year Midland farmers sought permits to set out small amounts of poisoned rice during the blackbirds’ spring stop in order to reduce the fall blackbird population. Some residents voiced concern that the rice could threaten certain species of rare migratory birds. Nevertheless, the wildlife agency approved the permits.
Which of the following, if true, most helps to justify the wildlife agency’s approval of the permits, given the concern voiced by some residents? D-A A. In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring. B. The poison that farmers want to use does not kill birds but rather make them incapable of producing viable eggs. C. Since rice is not raised in midland province, few species of birds native to the province normally eat rice. D. Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined E. The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.
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发表于 2009-9-10 18:00:00
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