25.如图是“无废弃物农业 物质和能量流动图该图所体现的主要生态工程原理是 A.物种多样性原理 B.整体性原理 C.物质循环再生原理 Template




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tomski25.如图是“无废弃物农业 物质和能量流动图该图所体现的主要生态工程原理是 a.物种多样性原理 coloring