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题库 / GMATLA-SC-107
According to recent studies comparing the nutritional value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is good for cardiac health.
wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is
wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
wild animals have less total fat than that of livestock fed on grain and have more fat of a kind thought to be
total fat of wild animals is less than livestock fed on grain and they have more fat of a kind thought to be
total fat is less in wild animals than that of livestock fed on grain and more of their fat is of a kind they think is
题目分析：
略
选项分析：
A选项：代词they没有指代对象。
B选项：Correct. 本选项在逻辑和语法上均是正确的。
C选项：fat of a kind需改为a kind of fat。a kind of是一个固定搭配，表示某一种，不能拆分。of a kind表示“同一类，相似的”，显然不符合本题的含义。另外，这里的that of略有赘余的嫌疑，虽然可以比较两种动物的脂肪，但比较两种动物已经足够清楚，所以这个that of可以不必要添加。
D选项：比较对象不对等，应该比较的是野生动物和家养动物。fat of a kind需改为a kind of fat错误同选项(C)。
E选项：代词they的指代错误同(A)。fat is of a kind错误原理同选项(C)。
重建规则：A do B than C通常是错的，如果语意不会引起明显的歧义，也可以保留这类选项。
more of+名词，（1）表示更多地是，更大程度上是，如：What he told us was more of an illusion (than a reality).他告诉我们的更多是一个幻想(而不是现实). （2）表示一个群体里更多的部分，语意上等于more+名词，用上more of是因为名词前通常还有其他修饰语，如：More of my students更多我的学生 ；more of a kind of fat, 更多的一种脂肪。
注意A中they无指代对象。
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