1.        GWD-7-Q37:

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?

1. The increase in corn prices is due more to a decline in the supply of corn than to a growth in demand for it.

2. Generally, farmers who are squeezed out of the livestock business send their livestock to market much earlier than they otherwise would.

3. Some people who ate meat regularly in the past are converting to diets that include little or no meat.

4. As meat prices rise, the number of livestock producers is likely to rise again.

5. Livestock producers who stay in the business will start using feed other than corn more extensively than they did in the past.

答案：B。我选E，以为不用玉米喂养，价格就不升。请问这个逻辑错在哪里。另外

谢谢。

B---for example, if a farmer has 10 livestock at home to sell, he sells 5 livestock each time in the market when he is still in business.

if he's going to be squeezed out of business, he will sell 10 livestock at a time.

for the market, take his first time in both cases, one is 5 livestock, the other one is 10 livestocks, apparently, the second time indicates great increase in the livestock demand. In other words, he increase the demand in advance. This solve the discrepancy of the question.

E---corn is the principal feeding food for livestock,

more feeding---more livstock---more demand---low price

in this logic, we should use corn more extensively than ever.

Even if E changes this, it's still not right.

the key of this question is the price has declined just short-term---temporarily, if we keep increasing demand, the price will keep decreasing and never come back.