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7. The intricate structure of the compound insect eye, having hundreds of miniature eyes called ommatidia, help explain why scientists have assumed that it evolved independently of the vertebrate eye.
(A) having hundreds of miniature eyes called ommatidia, help explain why scientists have assumed that it
(B) having hundreds of miniature eyes that are called ommatidia, helps explain why scientists have assumed that they
(C) with its hundreds of miniature eyes that are called ommatidia, helps explain scientists’ assuming that they
(D) with its hundreds of miniature eyes called ommatidia, help explain scientists’ assuming that it
(E) with its hundreds of miniature eyes called ommatidia, helps explain why scientists have assumed that it
C答案, OG解释给了两个错误：they的代指，和assuming用作所有格是不合适的？
我不懂后者，难道是assuming是简单动名词? 如果加了冠词the, 即：explain the scientists' assuming对不对呢？ 或者是explain the scientists' assupmtion对不对呢？
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发表于 2013-10-29 11:48:41
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