It is widely acknowledged that students should be   in terms of overall quality.

A．supported

B．matched

C．evaluated

D．controlled

一肺气肿患者端坐位与医生交谈过程出现气短。

测得MVV占预计值的35%。根据此数值，考虑该患者肺通气功能（）

A.严重减退

B.显著减退

C.稍有减退

D.可疑减退

E.基本正常