下列哪项不是与鸟类飞行相适应的特点是 A体被羽毛前肢成翼b有�达的胸肌c体内有气囊d体温恒定——青夏教育精英家教�—— Template




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tomski下列哪项不是与鸟类飞行相适应的特点是 a体被羽毛前肢成翼b有�达的胸肌c体内有气囊d体温恒定——青夏教育精英家教�—— coloring