______ about the safety of the people in the earthquake-stricken Lushan county in Sichuan Province, Premier Li has flew there to direct the rescue mission.

A．Concerning

B．Concerned

C．To be concerned

D．Concern

急性心肌梗死急性期病人的护理措施包括( )。

A．绝对卧床休息

B．给予氧气吸入

C．保持大便通畅

D．持续心电监护

E．备好抢救设备和药品