世界上最严重的核事故是（）。
A、前苏联切尔诺贝利核事故
B、美国三哩岛核事故
C、英国温茨凯尔核事故
参考答案：A
"What's your job?" means "_ " [ ]
A. What do you look like?
B. What do you do?
C. What do you like?
D. What are you like?
对脱险人员管理的首要任务是什么？
