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题库 / Prep2012-CR-32
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?
No pronounced trend of decreasing per capita demand for rice is imminent in Teruvia.
Not all of the acreage in Teruvia currently planted with rice is well suited to the cultivation of rice.
None of the strains of rice grown in Teruvia are exceptionally high-yielding.
There are no populated regions in Teruvia in which the population will not increase.
There are no major crops other than rice for which domestic production and domestic demand are currently in balance in Teruvia.
assumption就是加强，加强的思路就是取非来看能否削弱。
A若取非，人均需求有显著降低是即将发生的，那国内大米产量就够了，不需要进口了，削弱，则A本身为增强项，可选；
c，strains种类
If we look at option C and negate it we get that some of the rice grown in Teruvia are exceptionally high yielding...which are in use and thus current demand are met...what if we use more of these strains...the demand may be met..but here we are heading in to assuming other things as well...So there are 2 levels assumed here...
Similar to D
哈哈 就是二次假设，有一些可能高产，不代表就可以量产，也行他只能适合某种特殊的气候成长在很小的一个地方，不影响文章的假设即产量也不会明显增加。你在哪来看到的英文解释呀？
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