用甘草、生石灰为辅料炮制的是
A．生半夏B．姜半夏C．清半夏D．法半夏E．半夏曲
参考答案：D
My grandma is ill and she ______ in bed for a month. [ ]
A. stays
B. stay
C. has stayed
D. stayed
以下哪几项参数是反映肺通气功能状态的指标（）
A.PAO2
B.PaCO2
C.VD/VT
D.pH
E.【HCO3-】
