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逻辑新东方兰皮223,226题求助

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楼主
发表于 2008-3-5 14:16:00 | 只看该作者

逻辑新东方兰皮223,226题求助

223Purcbred cows native to Mongolia produce, on average, 400 liters of milk per year, if Mongolian cattle are crossbred with European breeds, the crossbred cows can produce, on average, 2,700 liters per year. An international agency plans to increase the profitability of Mongolia s dairy sector by encouraging widespread crossbreeding of native Mongolian cattle with European breeds.

Which of the following if true, casts the most serious doubt on the viability of the agency’s plan?

(A) Not all European breeds of cattle can be successfully bred with native
  Mongolian cattle.
(B) Many young Mongolians now regard cattle raising as a low-status
  occupation because it is less lucrative than other endeavors open to them.
(C) Mongolia s terrain is suitable for grazing native herds but not for growing the fodder needed to keep crossbred animals healthy.
(D) Cowhide and leather products. not milk, make up the bulk of Mongolia s
  animal product exports to Europe.
(E) Many European breeds of cattle attain average mild production levels
  exceeding 2,700 liters.

此题目答案是C,但是为什么A不行呢?A不是也削弱了Agency plan的可行性么,交配失败,牛奶高产量无法得到保证?

226Canadians now increasingly engage in “out-shopping” which is shopping across the national border where prices are lower. Prices are lower outside of Canada in large part because the goods-and-services tax that pays for Canadian social services is not applied. Which one of the following is best supported on the basis of the information above

AIf the upward trend in out-shopping continues at a significant level and the amounts paid by the government for Canadian social services are maintained
                the Canadian goods-and-services tax will be assessed at a higher rate.

BIf Canada imposes a substantial tariff on the goods bought across the border a reciprocal tariff on cross-border shopping in the other direction will be imposed thereby harming Canadian businesses.

CThe amounts the Canadian government pays out to those who provide social services to Canadians are increasing.

DThe same brands of goods are available to Canadian shoppers across the border as are available in Canada.

EOut-shopping purchases are subject to Canadian taxes when the purchaser crosses the border to bring them into Canada.

这道归纳题的答案为什么是A呢?文章只说了在边境处价钱低是因为免除商务税,怎么能推出A呢?

 

 

沙发
发表于 2008-3-6 17:47:00 | 只看该作者

223.A不如C强烈,如果不是全部的牛都可以杂交,要保证成功率的话,就多一点牛参加杂交好了

226.税=境内买东西数量(或金额)*税率,如果税要收的一样多,境内买东西的人越来越少(都去边境上买了),那么税率当然要提高了

板凳
发表于 2008-3-6 18:53:00 | 只看该作者
以下是引用allln123123在2008-3-6 17:47:00的发言:

226.税=境内买东西数量(或金额)*税率,如果税要收的一样多,境内买东西的人越来越少(都去边境上买了),那么税率当然要提高了

境内买东西的人越来越少(都去边境上买了),那么税率当然要提高了---这句话不理解

境内买东西的人越来越少了  那就应该降低税率  要不然在境内买东西的人不就会更少了吗

地板
发表于 2008-3-6 19:01:00 | 只看该作者

楼上的想的太复杂了,题目只是简单的用税=境内买东西数量(或金额)*税率,来衡量税收,为了结果不变,一个乘数减少,另一个必须上升

而并没有说如何让境内买东西的人越来越多,而且这个税是应该加在商家身上的把(个人认为),并不是加在消费者身上,所以其税率的高低对消费者并没有直接影响

5#
发表于 2008-3-6 19:14:00 | 只看该作者

恩 懂了

我忽视了选项本身的前提 自己设想了一个

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