下图是人耳内声波传导示意图据图回答1b的作用是 C的作用是 .2在飞机降落的过程中乘客往往出现咀嚼动作其目的是为了 Template




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tomski下图是人耳内声波传导示意图据图回答1b的作用是 c的作用是 .2在飞机降落的过程中乘客往往出现咀嚼动作其目的是为了 coloring