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. 提干是说“合法捕获次数“不变,而捕获数量减少,因此得出非法捕获的数目就是合法捕获数目减少的那部分。 A.The illegal lobster harvesting was not so expensive that the population of catchable lobsters in Belukia’s territorial waters had sharply declined by 1996 A正确,给出前提,龙虾总的数目没少。因为如果总的数目变少,合法捕获数目减少很可能是因为总的(可以捕获)数目变少导致的,也就推断不出非法捕获数目等同于合法数目减少部分了
A迷惑就在于非要提was not so expensive that ... ,白给了一个龙虾数目变少的原因。
这个在9月JJ中出现了
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