投交附回执邮件完成核对无误后，在回执背面加盖（），按给据邮件处理，退寄件人。
A、收寄日戳
B、投递日戳
C、寄退日戳
D、投交日戳
参考答案：C
He explained to the class what he suggested ____ his idea ____．
A．to make, accepted
B．making, agreed to
C．should make, receive
D．make, passed
短期回购业务流动较强，因此金融机构可以临时用他人委托保管的债券进行短期的回购业务。( )
