生物兴趣小组的同学为了探究细菌和真菌对植物的残枝败叶有分解作用提出了三种实验方案.三种实验方案的共同特点是将同一种�的落叶分成甲乙两组 Template




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tomski生物兴趣小组的同学为了探究细菌和真菌对植物的残枝败叶有分解作用提出了三种实验方案.三种实验方案的共同特点是将同一种�的落叶分成甲乙两组 coloring