电话银行个人签约客户功能包括（）。
A、查询
B、转账
C、投资理财
D、缴费
参考答案：A, B, C, D
--- Listen! David is talking happily with his mother in the next room.
--- It ______ be his mother. She has gone to Yunnan to be a volunteer doctor.
A．should
B．must
C．can’t
D．mustn’t
SBS改性沥青防水卷材有什么特点
