这个问题困扰了我很久,又苦于没有典型例题来请大家分析。就是有时候遇到削弱题时正确的选项有时会是他因削弱,但是有时遇到一些其他题,选项里说了别的因素看一些解析又说是跳出考虑范畴。实在是苦恼,到底什么时候考虑他因,什么时候不考虑。难道是削弱题才有他因削弱,其他题型都没有吗?附上今天遇到的GWD一道假设题(GWD5-Q21):
In Teruvia, the quantity of rice producedper year is currently just large enough to satisfy domestic demand. Teruvia’s total rice acreage will not beexpanded in the foreseeable future, nor will rice yields per acre increaseappreciably. Teruvia’s population,however, will be increasing significantly for years to come. Clearly, therefore, Teruvia will soon have tobegin importing rice. Which of thefollowing is an assumption on which the argument depends? A. No pronounced trend of decreasing per capitademand for rice is imminent in Teruvia. B. Not all of the acreage in Teruvia currentlyplanted with rice is well suited to the cultivation of rice. C. None of the strains of rice grown in Teruviaare exceptionally high-yielding. D. There are no populated regions in Teruvia inwhich the population will not increase. E. There are no major crops other than rice forwhich domestic production and domestic demand are currently in balance inTeruvia.
答案是A,我能理解,但是E为啥不考虑了呢? 希望NN帮我解答一下,最困惑的就是他因了,几乎每次都错
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