日间差错业务不处理，会在系统日终对账之后形成（）。
A.系统自动处理
B.对账差错
C.日终差错
D.操作差错
参考答案：B
He worked hard to ________ some money for his retirement.[ ]
A. set aside
B. set out
C. set off
D. set about
