可造成人员死亡、伤害、职业相关病症、财产损失或其他损失的意外事件称为()。
A.事故
B.不安全
C.危险源
D.事故隐患
参考答案:A
With a lot of difficult problems________, the newly-elected president is having a hard time.
A. settled
B. settling
C. being settled
D. to settle
()是在敌火下迅速通过开阔地时采用的运动方法。
A.跃进
B.滚进
C.屈身慢进
D.匍匐前进