下列不是哮喘气流受限的机制的是（）
A.支气管黏膜水肿
B.肺泡壁破坏
C.微小血管渗漏
D.支气管平滑肌收缩
E.气道壁重建
参考答案：B
---There is a tall building on Taoze Road. Do you know?
---I know it. It ________ has 10 floors.
A．most
B．at least
C．least
D．will
我国的"国宝"大熊猫分布在什么地方？
