急性心肌梗死最主要的治疗方法是()。
A.吸氧、镇静、止痛、休息
B.室性心律失常静注阿托品
C.静推毛花苷C
D.发病8小时后溶栓
E.采取坐位及双腿下垂
参考答案:A
.
The woman hurried to the airport, _________ that the plane had taken off.
A.only being told
B.only to be told
C.only to tell
D.only having told
萃取操作的结果,萃取剂和被萃取物质必须能够通过精馏操作分离。