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[Sentence Correction]
试题详情
题目：
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.
选项:
A、wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is
B、wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
C、wild animals have less total fat than that of livestock fed on grain and have more fat of a kind thought to be
D、total fat of wild animals is less than livestock fed on grain and they have more fat of a kind thought to be
E、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
答案:
B
提问：
陆旭老师您好，请问这个A选项，第一，they应该是指代不清，不过是否可以指代studies？可以看做“一些研究认为”吗？（think主语必须是人或者动物吗？）第二，A这个选项有些同学和我说livestock是集合名词必须用单数动词 所以应该改为 。。。。than does livestock。。。老师您同意这种说法吗？我查了几本词典，这词好像可以是看成集合名词（类似crew，后面用单数动词）也可以是复数名词（类似cattle，后面用复数动词），还有的说是不可数名词。GMAT或者美国人通常如何看这个词？livestock后面动词应该是单数还是复数？
解答：
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