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标题: GWDTT9-16 [打印本页]

作者: xyredpoppy 时间: 2009-9-9 11:10
标题: GWDTT9-16

Q16:

In response to mounting pubic concern, an airplane manufacturer implemented a program with the 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 output 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?

The amount of nonhazardous waste generated each year by the passenger-jet division has not increased significantly since 1994.
At least as many passenger jets were produced by the division last year as had been produced in 1994.
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.
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.
The number of production workers assigned to the passenger-jet division was not significantly less in 1994 than it was last year.

Answer: E

assumption题，E取非之后是：94年工人人数比去年少，这和waste output per production worker没有关系吧，因为也不知道waste的总量是多少，就没法说每人的量到底是比条件中多还是比条件中少....

作者: overthere33 时间: 2009-9-9 13:43

注意结论

reducing by half the total yearly amount of hazardous waste 这才是目标人均减少并不是目标

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