12.下列有关新型农业生态系统的正确叙述是 A.该生态系统实现了物质和能量的良性循环 b.该生态系统提高了各营养级之间的能量传递效率 c Template




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tomski12.下列有关新型农业生态系统的正确叙述是 a.该生态系统实现了物质和能量的良性循环 b.该生态系统提高了各营养级之间的能量传递效率 coloring