男性，61岁，活动后心悸、气促5年，加重伴双下肢水肿3个月。查体：血压140／90m

In___film Cast Away.Tom Hanks plays___man named Chuck Noland.

A．a;the

B．the;a

C．the;the

D．a;a

家庭电路中输电线进户经过电能表后，总开关接在保险装置之______．（选填“前”或“后”）

_________, he would have been fired.

A．Had he lied to the boss

B．Did he lie to the boss

C．If he has lied to the boss

D．If he lies to the boss

患者男性，31岁，患重度二尖瓣狭窄，此患者有可能出现的最严重的并发症是（）

A.感染性心内膜炎

B.心房颤动

C.血栓栓塞

D.右心衰竭

E.急性肺水肿

界临界转速