下列关于青蛙的各种说法中正确的是a蝌蚪不仅用鳃�吸还用肺�吸因此青蛙是两栖动物b蝌蚪和成蛙在形态结构上有显�差异但生活习性完全相同 Template




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tomski下列关于青蛙的各种说法中正确的是a蝌蚪不仅用鳃�吸还用肺�吸因此青蛙是两栖动物b蝌蚪和成蛙在形态结构上有显�差异但生活习性完全相同 coloring