GWD-24-37. Fish currently costs about the same at seafood stores throughout Eastville and its surrounding suburbs. Seafood stores buy fish from the same wholesalers and at the same prices, and other business expenses have also been about the same. But new tax breaks will substantially lower the cost of doing business within the city. Therefore, in the future, profit margins will be higher at seafood stores within the city than at suburban seafood stores.
For the purposes of evaluating the argument, it would be most useful to know whether. (A)
more fish wholesalers are located within the city than in the surrounding suburbs. (B) Any people who currently own seafood stores in the suburbs surrounding Eastville will relocate their businesses nearer to the city (C) The wholesale price of fish is likely to fall in the future (D)
Fish has always cost about the same at seafood stores throughout Eastville and its surrounding suburbs. (E) Seafood stores within the city will in the future set prices that are lower than those at suburban seafood stores. 答案是Ｅ，我选Ｄ。 我的推理： 鱼在Ｅ市和郊区差不多价格，并且在两地的经营成本差不多。但是Ｅ市的经营成本将会显著减少，所以Ｅ市的卖鱼利润空间将会比郊区高。 For the purposes of evaluating the argument, it would be most useful to know whether： (D)在Ｅ市和郊区两地的鱼是否卖一样的价格。如果一样的话，根据条件，结论就成立。如果不一样，那么结论就被weaken
(E) Seafood stores within the city will in the future set prices that are lower than those at suburban seafood stores.
请问Ｄ为什么不对？ | 
