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【单选题】
关于胸廓的弹性阻力,下列哪种叙述是错误的( )A.
是胸廓的弹性回位力
B.
当胸廓处于自然位时,为零
C.
平静呼吸时肺弹性阻力大于胸廓的弹性阻力
D.
用力呼气时,胸廓弹性阻力下降
E.
当肺容积小于40%时,胸廓弹性阻力大于肺弹性阻力
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【单选题】由天主教人士组成的旅游团，每天早晨开车前，他们会在车上讲经、做祈祷。对此，导游人员应
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