It is known to us all that the People’s Republic of China ______ on October 1, 1949.

A．was founded

B．was found

C．founded

D．is found

临床上常用的除极化型肌松药是

A．卡巴胆碱

B．琥珀胆碱

C．筒箭毒碱

D．阿曲库铵

E．多库铵