当一条蛇捕食了一只青蛙后从生态学角度看下列叙述正确的是 A.完成了物质循环 b.蛇破坏了生态平衡 c.青蛙不能适应环境 d.青蛙的 Template




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tomski当一条蛇捕食了一只青蛙后从生态学角度看下列叙述正确的是 a.完成了物质循环 b.蛇破坏了生态平衡 coloring