When the teacher walked into the classroom, the students ____ at once.

A．stopped to talk

B．stopped talking

C．stop to talk

D．stop to talking

当存款人在同一银行营业机构撤销银行结算账户后重新开立银行结算账户时，重新开立的银行结算账户可自开立3日起办理付款业务。