In 1992 outlaw fishing boats began illegally harvesting lobsters from the territorial waters of the countru of Belukia. Soom after, the annual tonnage of lobster legally garvested inBelukian waters began declining; in 1996, despite there being no reduction in the level of legal lobster fishing activity, the local catch was 9000tons below pre-1992levels. It is therefore highly likely that the outlaw fishing boats harvested about 9000 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 inBelukia's territorial waters had sharply declined by 1996.
B. The average annual lobster catch, in tons of an oulaw 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 9000 tons.
E. A signigicant proportion of Belukia's operators of licensed lobster-fishing boats went out of business between 1992 and 1996.
A. The illegal lobster harvesting was not so extensive that the population of catchable lobsters inBelukia's territorial waters had sharply declined by 1996. A对，是因为非法船只并没有多到降低龙虾产量。跟文中观点相符合： “96年合法的少捕了9000吨，非法的捕到了9000吨。说明，龙虾的产量并没有下降，而是被非法的船给捕捞了。”
B. The average annual lobster catch, in tons of an oulaw fishing boat has increased steadily since 1992. 从文中看，到96年，捕捞的总量也没有增加。而合法捕捞的量更是减少的。所以B错。
C. Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats. 这个到底有没有多，和多多少，不知道。文里提都没提。
D. The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9000 tons. 这个数字不知道，文中两次提到的9000吨跟D没有关系。
E. A signigicant proportion of Belukia's operators of licensed lobster-fishing boats went out of business between 1992 and 1996. 文里没提作者: jyw0411lsq 时间: 2011-2-15 21:05
顶一下，豁然开朗作者: hlhlhlt 时间: 2012-10-26 21:53
解释得非常清楚，感谢！！ 再回头看A，觉得这就是对题干第一句话的重复，95年那个事就是一个example。