办理结算业务必须遵循的原则是什么？
参考答案：
办理结算业务必须遵循“有疑必查，有查必复，复必详尽，切实处理”的原则。
-- Are you going to the party?
-- No, because I ______.
A．have asked
B．haven’t asked
C．have been asked
D．haven’t been asked
性本情用、性情一也
