客户风险等级分类由（）的支行负责。
参考答案：为客户开立账户
By the time he arrives in Beijing, we ______ here for two days.
A．will have stayed
B．will be staying
C．have been staying
D．have stayed
应放在斗架高层的药物是（）
A.当归
B.月季花
C.龙骨
D.荷叶
E.薄荷
