GWD第十三套逻辑题，第十九题呢～

gmatyummy

In1992 outlaw fishing boats began illegally harvesting lobsters from theterritorial waters of the country of Belukia. Soon after, the annual tonnage oflobster legally harvested in Belukian waters began declining; in 1996, despitethere being no reduction in the level of legal lobster fishing activity, thelocal catch was 9,000 tons below pre-1992 levels. It is therefore highly likelythat the outlaw fishing boats harvested about 9,000 tons of lobster illegallythat year.

Whichof the following is an assumption on which the argument depends?

• The illegal lobster     harvesting was not so extensive that the population of catchable lobsters     in Belukia’s territorial waters had sharply declined by 1996
  
• The average annual     lobster catch, in tons, of an outlaw fishing boat is has increased     steadily since 1992.
  
• Outlaw fishing     boats do not, as a group, harvest more lobsters than do licensed     lobster-fishing boats.
  
• The annual legal     lobster harvest in Belukia in 1996 was not significantly less than 9,000     tons.
  
• A significant     proportion of Belukia’s operators of licensed lobster-fishing boats were     out of business between 1992 and 1996
  

请大家帮我翻译下A,和原文，看了好一会儿都没有弄清楚句意！跪谢～～～～～～～～～～～～～～～

wjtwenzi

我自己的理解：
捕捞龙虾的非法活动并没有那么密集以至于在Belukia这片区域能捕捞的龙虾数量急剧减少（直到到1996年）

换句话说，这个选项排除了是非法捕捞导致可以捕捞的龙虾数量减少

gmatyummy

米好意思，我还是没太懂。它意思不是说9000T可能都是非法的嘛，A怎么就假设了呢？