营运客车起步前,乘务人员应提醒乘客系好安全带。
参考答案:对
—How's my father, doctor?
—I'm sorry to say he's _ [ ]
A. much better
B. very well
C. more worse
D. even worse
《安全生产法》规定,特种作业人员必须经专门的安全作业培训。取得特种作业()证书,方可上岗作业。()
A、操作资格
B、许可
C、安全
D、操作