问题
单项选择题
关于功能残气量的描述错误的是（）
A.可直接由肺量计测得
B.具有较好的重复性
C.主要反映胸廓弹性回缩和肺的弹性回缩力之间的关系
D.超过40%提示肺气肿
E.肺弹性回缩力下降可使FRC增高
答案
参考答案：D
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关于功能残气量的描述错误的是（）
A.可直接由肺量计测得
B.具有较好的重复性
C.主要反映胸廓弹性回缩和肺的弹性回缩力之间的关系
D.超过40%提示肺气肿
E.肺弹性回缩力下降可使FRC增高
参考答案：D
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