在二尖瓣狭窄的血液动力学变化中，下列哪项是错误的：

A．最终引起体静脉淤血

B．先发生左房的代偿性肥大

C．晚期发生右心衰竭

D．左心室发生代偿性肥厚、扩张

E．肺淤血发生在左房衰竭之后

As an Olympic volunteer，you should know how to ________ emergent cases.

A．do with

B．think of

C．deal with

D．think about