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题库 / GMATLA-SC-22
Unlike human runners, who broke the four-minute mile in 1954 and they consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have had winning times with little improvement: Secretariat's world-record-breaking Derby tine of 1:59 2/5, for example, was set in 1973 and remained unsurpassed more than a quarter of a century later.
they consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have had winning times with little improvement
they have consistently recorded faster times ever since, those of horses in classic races such as the Kentucky Derby have shown little improvement in winning times
have consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have shown little improvement in winning times
have consistently recorded faster times ever since, in those of classic races such as the Kentucky Derby, horses have had winning times with little improvement
consistently recorded faster times ever since, those of horses in classic races such as the Kentucky Derby have shown little improvement in winning times
题目分析：
略。
选项分析：
A选项：首先，broke the four-minute mile in 1954和have consistently recorded faster times ever since两者应该都是去修饰人类的跑步者（human runners），即，均做定语从句。此两者需要保持平行，应把they去掉（因为定语从句中，先行词需要做一个成分，此处必须做record的主语，所以定语从句中的record必须缺少主语）。第二，recorded应由过去时改为现在完成时，这是因为，选项的最后出现了ever since，其修饰的内容必须是现在完成时。
B选项：平行错误同选项(A)。句首的介词unlike身后是“人类跑步者”，能和人类比的对象是马类而不是those of horses。
C选项：Correct. 本选项在语法和逻辑上均是正确的。
D选项：unlike连接的对比对象有误同(B)。
E选项：recorded应由过去时改为现在完成时have recorded，该错误同(A)。另外，unlike连接两者不可比，该错误同选项(B)。
ever since现在完成时
ever since-- 完成时的标志
能和人类比的对象是马类而不是those of horses
D的对比选项没有错，错误点应该是 in those of races 位置改变了。D选项，其在中间时，可以同时修饰前面的伴随或者后方的主句
同意
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