—It shouldn't be so difficult to solve the problem if we all come to help．

—That's right_    _．

A．Many hands make light work

B．Something is better than nothing．

C．The more, the better

D．The sooner begun, the sooner done

患者，男性，63岁，持续心前区痛5小时，确诊为急性心肌梗死收入监护室，监测中发现患者出现心室纤颤，此时责任护士应即刻采取的首要措施是（）

A.静脉注射利多卡因

B.静脉注射异丙肾上腺素

C.静脉注射毛花苷C

D.非同步直流电除颤

E.同步直流电除颤