如图中a表示人体的膈肌，据此判断甲、乙两人所处的呼吸运动过程

如图中a表示人体的膈肌，据此判断甲、乙两人所处的呼吸运动过程分别是

A．甲、乙都吸气 B．甲呼气、乙吸气

C．甲吸气、乙呼气 D．甲、乙都呼气

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如图中a表示人体的膈肌，据此判断甲、乙两人所处的呼吸运动过程

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