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题库 / GMATLA-CR-71
Escalating worldwide demand for corn has led to a sharp increase in the market price of corn, and corn prices are likely to remain high. Corn is extensive used as feed for livestock, and because profit margins are tight in the livestock business, many farmers are expected to leave the business. With fewer suppliers, meat prices will surely rise. Nonetheless, observers expect an immediate short-term decrease in meat prices.
Which of the following, if true, most helps to justify the observers' expectation?
The increase in corn prices is due more to a decline in the supply of corn than to a growth in demand for it.
Generally, farmers who are squeezed out of the livestock business send their livestock to market much earlier than they otherwise would.
Some people who ate meat regularly in the past are converting to diets that include little or no meat.
As meat prices rise, the number of livestock producers is likely to rise again.
Livestock producers who stay in the business will start using feed other than corn more extensively than they did in the past.
只有B才是short-term：被挤出肉类市场的农民会提前把肉类带去市场进行交易，说明会集中出现一波肉类的集中抛售，供大于求
注意题目conclusion是short-term，只有B选项是immediate，short-term的影响
只有选项b对应的short-term
short-term
由于玉米涨价，以玉米作为原材料的饲料也跟着涨价。由于利润微薄导致很多畜牧业农民离开，随着肉类供应商减少必然导致肉类价格升高。但是预测会出现短期的肉类价格下降，问explain
choice a, 玉米价格升高是因为供应减少而不是需求增加。irrelevant
choice b, 被挤出肉类市场的农民会提前把肉类带去市场进行交易。correct，说明会集中出现一波肉类的集中抛售在短期内降低价格
choice c,d,e 都属于 long-term影响
注意：immediate short-term decrease in meat！！！
A：比较需求上升和供给下降对于玉米价格上升的冲击那个更大，完全没在解释这个meat decrease。B：由于profit margin太小而放弃livestock margins的farmers可能会早些出售他们的livestock，供给短期上升，价格短暂下降。C: converting diet不是一个immediate和short-term的事情。D: meat价格上升= =？？E：剩下的livestock producer可能出于价格压力选择其他的feed，但是也不是一个short-term的事情。
A 与corn无关 C some无意义概率 即便对 也是长期影响 不是文中短期 D是结果 错 E不知道其他饲料利润情况 不知道肉价变化情况
好题记录，易出错
没有注意结论的short term