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GRE阅读考试难句解读(五).

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  32.One such novel idea is that of inserting into the chromosomesof plants discrete genes that are not a part of the plants&apos naturalconstitution:specifically,the idea of inserting into nonleguminousplants the genes,if they can be identified and isolated,that fit theleguminous plants to be hosts for nitrogen-fixing bacteria. Hence,theintensified research on legumes.

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