下列有关右图的叙述中正确的是 A.图中有二条捕食链 B.狐与鸟之间既捕食又竞争 C.细菌占有第二三四五营养级 D.体内含重�属最多的 Template




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tomski下列有关右图的叙述中正确的是 a.图中有二条捕食链 b.狐与鸟之间既捕食又竞争 coloring