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GRE阅读：逻辑题解析

发布时间：2016-03-01 编辑：查字典英语网小编

　　1,Parlands alligator population has been declining in recent years，primarily because of hunting. Alligators prey heavily on a species of freshwater fish that is highly valued as food by Parilanders，who had hoped that the decline in the alligator population would lead to an increase in the numbers of these fish available for human consumption. Yet the population of this fish has also declined，even though the annual number caught for human consumption has not increased.

　　P地区的短吻鳄数量近些年下降，主要原因是捕猎。短吻鳄捕食的淡水鱼是P居民的食物，P居民希望短吻鳄数量的下降可以导致这种可供人们消费的鱼的数量上升。但是这种鱼的数量也下降了，尽管它每年被人类抓住消费的的量没有增加。

　　Which of following，if true，most help to explain the decline in the population of the fish species?

　　下列哪个选项如果是对的，最有效地解释了鱼的数量下降?

　　A.The decline in the alligator population has meant that fishers can work in some parts of lakes and rivers that were formerly too dangerous.

　　短吻鳄数量的下降意味着渔民可以到以前湖里和江河里那些以前很危险的地方工作。

　　B.Over the last few years，Parlands commercial fishing enterprises have increased the number of fishing boats they use.

　　过去几年，P的渔业公司增加了它们使用的捕鱼船数量。

　　C.The main predator of these fish is another species of fish on which alligator also prey.

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