计算操作风险的标准法中，商业银行业务的权重值为（）
A.12%
B.15%
C.18%
D.16%
参考答案：B
It's 6:30 in the afternoon. It's time to ________.[ ]
A. go to bed
B. get up
C. have supper
D. go to school
学会________、________ ，是一切美德的生长点。
