16.如图是人体�吸系统组成图请据图回答问题1人的�吸系统是由�吸道和肺组成的.2�吸道和消化道的共同通道是咽.3�吸系统中 Template




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tomski16.如图是人体�吸系统组成图请据图回答问题1人的�吸系统是由�吸道和肺组成的.2�吸道和消化道的共同通道是咽.3�吸系统中 coloring