风险识别的步骤包括( )
A. 风险筛选
B. 风险监测
C. 风险预测
D. 风险诊断
-- Hello, could I speak to John please?-- ______________?
A. Who are you
B. What’s the problem
C. Are you Jane
D. Who’s speaking?
--What would you like, tea or coffee?-- _________________.
A. Yes, I would
B. Coffee, please
C. Yes, please
D. It’s very nice
W :Good afternoon,sir. Are you ready1order?G :Not yet. I'm waiting2my friends. We are a group of four.W :I see. Then would you like something to drink3 waiting?G :Well,I'd like a can cola,please.W :Fine. I'll be back soon.