无脉电活动所出现的心律如为宽QRS波时,可见于下列何种情形
A.重度高钾血症
B.广泛性急性心肌梗死
C.重度低体温症
D.老年患者的心脏停搏前心电
E.以上皆是
参考答案:E
His health ____ under the pressure of work and he had to stay in hospital for a month. [ ]
A. broke up
B. broke away
C. broke out
D. broke down
应急物资按照“()、合理储备、信息共享、统一调配”的原则管理。
A.集中管理
B.分级组织
C.分级管理
D.集中组织