咳喘无力，少气短息，吐痰清稀，自汗，舌淡脉弱，可辨证为（）
A.风寒束肺证
B.肺气虚证
C.风热犯肺证
D.痰热蕴肺证
E.燥邪犯肺证
参考答案：B
---What do you think of French?
---In my opinion, French is _______ English.
A．a subject so difficult as
B．as a subject difficult as
C．as difficult a subject as
D．difficult as subject as
化工搪瓷的性能
