操作风险对于内部损失数据收集的要遵循( )原则。
A．主观性
B．客观性
C．全面性
D．动态性
E．标准化
参考答案：B,C,D,E
— Will you go to the World Expo in Shanghai by bullet train after the Examination?
—_______ I may go by air.
A．Why not?
B．Not really.
C．How come?
D．Oh, great.
天然珍珠与养殖珍珠有哪些区别？
