麻黄杏仁甘草石膏汤主治证的病机是（）
A.肺热壅盛
B.风寒犯肺
C.痰热蕴肺
D.燥热伤肺
E.痰湿犯肺
参考答案：A
Which floor do you_______ this tall building?
A．live
B．live on
C．live in
D．live on in
