Nino Hernandez,    who ________ only 10kg and is regarded as the world's shortest living man,    

has not grown since he was 2 years old. [ ]

A. weighed          

B. had weighed      

C. weighs           

D. has been weighed

有效防治心肌缺血的措施包括（）。

A.术中避免血压波动过大

B.完善的血流动力学监测

C.控制心室率

D.心肌梗死病人行非心脏手术宜推迟至3个月后施行

E.全麻复合硬膜外麻醉