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  3. Using the techniques employed by genetic engineering, a new species of microorga

Using the techniques employed by genetic engineering, a new species of microorga

游客2024-01-13  49
问题 Using the techniques employed by genetic engineering, a new species of microorganism has been developed by laboratory scientists to aid in cleaning up oil spills by digesting the oil.
选项 A、Using the techniques employed by genetic engineering, a new species of microorganism has been developed by laboratory scientists to
B、Using the techniques employed by genetic engineering, a new species of microorganism that was developed by laboratory scientists will
C、Using the techniques of genetic engineering, laboratory scientists have developed a new species of microorganism to
D、Employing the techniques of genetic engineering, there has been a development by laboratory scientists of a new species of microorganism that will
E、Employing the techniques of genetic engineering, a new species of microorganism that was developed by laboratory scientists will
答案 C
解析 a new species不能作using短语的逻辑主语，而应是laboratory scientists作using的逻辑主语，排除A、B、E。D的表达冗长而笨拙，坚决排除。
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