—Jack, this is the third time that you have been late this week．

—Sorry, sir, but I was_____ for 15 minutes on the way here in the traffic jam．

A．held up

B．put up

C．taken up

D．given up

下述哪些情况可致热稀释法心排血量测定结果增高（）。

A.二尖瓣反流

B.三尖瓣关闭不全

C.心内左向右分流

D.心内右向左分流

E.快速输液