某校生物兴趣小组在一次实地考察中观察到了如图所示的几种动物.下列有关这些动物的叙述中错误的是 Ab的幼体既可用鳃�吸又可用肺�吸b Template




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tomski某校生物兴趣小组在一次实地考察中观察到了如图所示的几种动物.下列有关这些动物的叙述中错误的是 ab的幼体既可用鳃�吸又可用肺�吸b coloring