答案:A
解析:
Choice A is the best answer. The author states that the "symbiotic arrangement" between legumes and soil bacteria "benefits both parties." In other words, the arrangement is beneficial or advantageous to both the bacteria and the plants.
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答案:A
解析:
Choice A is the best answer. The author states that the "symbiotic arrangement" between legumes and soil bacteria "benefits both parties." In other words, the arrangement is beneficial or advantageous to both the bacteria and the plants.