分析以下生态系统的能量流动和物质循环的关系简图不能得到的结论是a.能量����的总和一定小于生产者所固定的太阳能总量b.生物圈的物质是 Template




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tomski分析以下生态系统的能量流动和物质循环的关系简图不能得到的结论是a.能量����的总和一定小于生产者所固定的太阳能总量b.生物圈的物质是 coloring