有关生物固氮的叙述错误的是 A.大气中的氮必须经过生物固氮才能被植物利用 b.土壤中反硝化细菌在氧气不足时将硝酸盐转化成亚硝酸盐并最终转化 Template




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tomski有关生物固氮的叙述错误的是 a.大气中的氮必须经过生物固氮才能被植物利用 b.土壤中反硝化细菌在氧气不足时将硝酸盐转化成亚硝酸盐并最终转化 coloring