The toxin gene in different strains of B. thuringiensis can affect different mixes of insects, so seed makers can select the version that seems best suited to a particular crop.
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美
释义
例如说,“环保科学家协会”的梅隆指出,耐盐稻米一旦落到湿地上,可能会像野草般蔓延,破坏脆弱的湿地生态系。
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