为什么是a 不是e呢

bernadotte

Q21:

In Teruvia, the quantity of rice produced per year is currently just large enough to satisfy domestic demand.  Teruvia’s total rice acreage will not be expanded in the foreseeable future, nor will rice yields per acre increase appreciably.  Teruvia’s population, however, will be increasing significantly for years to come.  Clearly, therefore, Teruvia will soon have to begin importing rice.



Which of the following is an assumption on which the argument depends?



A.   No pronounced trend of decreasing per capita demand for rice is imminent in Teruvia.

B.   Not all of the acreage in Teruvia currently planted with rice is well suited to the cultivation of rice.

C.   None of the strains of rice grown in Teruvia are exceptionally high-yielding.

D.   There are no populated regions in Teruvia in which the population will not increase.

E.    There are no major crops other than rice for which domestic production and domestic demand are currently in balance in Teruvia.

xiaolishally

前提是：1）目前大米正好够内需2）未来种植面积不变3）未来每单位产量不变4）未来人口在增加
结果是： 未来需要进口大米

假想：如果未来的人均消费降低了不就不需要进口么，既然结论是要进口，那么证明至少人均消费大米就没有降低

果汁软糖

额 发错区了么……