1.In 1992 outlaw fishing boats began illegally harvesting lobsters from the territorial waters of the country of Belukia. Soon after, the annual tonnage of lobster legally harvested in Belukian waters began declining; in 1996, despite there being no reduction in the level of legal lobster fishing activity, the local catch was 9,000 tons below pre-1992 levels. It is therefore highly likely that the outlaw fishing boats harvested about 9,000 tons of lobster illegally that year.
Which of the following is an assumption on which the argument depends?
(A) The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia’s territorial waters had sharply declined by 1996.
(B) The average annual lobster catch, in tons, of an outlaw fishing boat has increased steadily since 1992.
(C) Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats.
(D) The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9,000 tons.
(E) A significant proportion of Belukia’s operators of licensed lobster-fishing boats went out of business between 1992 and 1996.
这道题答案选a 我可以理解 但是我始终无法理解为什么e是错误答案
1992 1993 1994 1995 1996 这五年里, 根据题干 非法fishing一直都有, 而我们无法知道是否legal fishing是否在这五年里 年年都存在
根据题干 in 1996, despite there being no reduction in the level of legal lobster fishing activity只能推出 1996这一年合法捕鱼的活动存在 而且活动数量没有减少 所以才会有 捕鱼量比1992前少 9000吨 这么一个 surprising finding. 无法得知是否1992-1995一直都有合法捕鱼活动
如果在 1992 1993 1994 1995里没有合法捕鱼量 则原文结论尚可
如果有捕鱼量的话 那1992非法捕鱼的量就不可能是9000吨啊? 因为这样既有 合法捕鱼量 也有 1993到1995期间非法捕鱼量两个变量 怎么可能推出1992非法捕鱼量就一定是9000吨呢?
2.In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent. In contrast, in the year prior to the tax increase, sales had fallen one percent. The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.
The argument above requires which of the following assumptions?
(A) During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase.
(B) The one percent fall in cigarette sales in the year prior to the tax increase was due to a smaller tax increase.
(C) The pretax price of a pack of cigarettes gradually decreased throughout the year before and after the tax increase
(D) For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been in the previous year.
(E) As the after-tax price of a pack of cigarettes rises, the pretax price also rises.
oa 还有这道题 完全不懂 没思路 网上查解析也是五花八门....请大神指导
谢谢!
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发表于 2019-4-19 21:30:30
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