如图为鸟的�吸系统示意图请据图回答问题1给出图中序号结构的名称1气管.2 .3 2家鸽的身体�形这种体形可以减� Template




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tomski如图为鸟的�吸系统示意图请据图回答问题1给出图中序号结构的名称1气管.2 .3 2家鸽的身体�形这种体形可以减� coloring