蓝皮书OG-SC 24----

supermanlee

In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor.

我选择-partly because certain characteristics should be acquired by their steers


正确答案-partly to acquire certain characteristics in their steers


我知道我的答案有用语繁琐被动的问题，但是很平行啊，正确答案怎么看都不对劲，哪位NN讲解一下啊！！？？到底平行重要呢，还是简洁重要啊？

xiexiang

它说之所以用to不用because是因为一个表目的一个表原因，但不是逻辑意思以原句为主吗？原句中我们也可以理解为acquire是一个标准所以should, 正确答案似乎自己改变了逻辑，再者，不是以平行为重，情态动词不可随意改变吗？这么多不合规矩似乎我很难判断到选 E，，，GMAT的平行简洁逻辑通不是宗旨吗？？？ 严重等待哪位NN回答

teddyabc

同问。OG对D的解释是Passive voice should be acquired by is awkward and illogical.
这里illogical在哪里？原句不也是这个意思？
E选项看了答案确实可以理解。但是，正过来分析这道题目，思路应该是怎么样的？
谢谢！