蛙的离体心脏在生理盐水能持续搏动几小时其原因是a蛙是水陆两栖的动物所以心脏能在水中跳动b心肌受生理盐水刺激产生兴奋c心脏有自动节律 Template




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tomski蛙的离体心脏在生理盐水能持续搏动几小时其原因是a蛙是水陆两栖的动物所以心脏能在水中跳动b心肌受生理盐水刺激产生兴奋c心脏有自动节律 coloring