经风险调整的收益率为每个业务单位或交易的( )和经济资本的比率。
A．营业收入
B．税后净利润
C．交易成本
D．预期利润
参考答案：B
--- Mum, I got good marks in the final exams.
--- .
A．It’s very nice of you.
B．Good luck
C．Congratulations!
D．I’m sorry to hear that.
I was about to leave my house______ the telephone rang.
A．while
B．as
C．when
D．and
