生态学家研究�现植物群落中的类胡萝卜素和叶绿素的比率与群落的p/r比率�现一定的关系这种关系如图所示以下判断正确的是a.有机物积累逐渐 Template




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tomski生态学家研究�现植物群落中的类胡萝卜素和叶绿素的比率与群落的p/r比率�现一定的关系这种关系如图所示以下判断正确的是a.有机物积累逐渐 coloring