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Traces of cultivated emmer wheat have been found among the earliest agricultural remains of many archaeological sites in Europe and Asia. The only place where the wild form of emmer wheat has been found growing is a relatively narrow strip of southwest Asia. Since the oldest remains of cultivated emmer wheat yet found are from village sites in the same narrow strip, it is clear that emmer wheat was first domesticated somewhere in that strip.
Which of the following, if true, most strengthens the argument?
(A) The present-day distribution of another wild wheat, einkorn, which was also domesticated early in the development of agriculture, covers a much larger area of southwest Asia.
(B) Modern experiments show that wild emmer wheat can easily be domesticated so as to yield nearly as well as traditionally domestic strains.
(C) At the time when emmer wheat was first cultivated, it was the most nutritious of all the varieties of grain that were then cultivated.
(D) In the region containing the strip where wild emmer wheat has been found, climatic conditions have changed very little since before the development of agriculture.
(E) It is very difficult, without genetic testing, to differentiate the wild form of emmer wheat from a closely related wild wheat that also grows in southwest Asia.
逻辑链：因为最早的家养EM是在这个条状地带发现的→EM最早是在这个条状地带实现家养的
求加强
A. 另一个麦覆盖地区更广
B. 野生EM容易家养
C. 当时EM是最有营养的食品
D. 条状地带气候变化很小
E. 野生EM和野生其他谷物很难分辨
当题目开始变难的时候，正确选项为什么对，就不是一眼能看出来的了。 这时候用“不相关”思想来排除是最快的考场做题法。A谈另外一个麦，不是我关心的事情；BC谈EM的特质，好不好养啊，有没有营养啊，好不好养有没有营养不是都已经养了吗，也不是我关心的事情；D第一遍看的时候可能无感，无感的选项一定要留着先；E又扯到别的野生谷物上去了，还不是我关心的事情。只剩D了，直接选。
D是怎么相关的呢？ 这个地带气候多年没变化→后来的谷物生长气候以前也存在→EM在这里的存在有延续性→以前也可能在这里家养的 特别长特别绕对不对？难题的正确选项，不要试图去搞懂它为什么是对的，你只要知道错的为什么错就行，绕多了脑子七窍全开更容易脑补。
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