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By the same techniques used for genetically enhancing plants, making them disease- or pest-resistant, researchers have been able to increase the amount of protein in potatoes, sweet potatoes, and tobacco.
A By the same techniques used for genetically enhancing plants, making them
B With the same techniques to genetically enhance plants, so that they are
C Employing the same techniques used to genetically enhance plants so that they are
D Employing the same techniques to genetically enhance plants, which makes them
E Employing the same techniques for genetically enhancing plants that make them
OA:C
我感觉这道题不好做,因为不容易找到一个绝对的错误去消选项。初步排掉DE,因为定语从句从句的内容显然修饰techniques,跳跃修饰不优。但是ABC我就不好抉择了,A我是翻了曼哈顿之后才发现use sth for doing是错误的,想问一下BC如何比较呢?B里面to genetically enhance plants应该是修饰techniques的,是不是techniques to是错误的呢?在我印象中,只有形容词、定语从句、现在分词、过去分词可以修饰名词,好像没见过不定式修饰名词的。 |
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