| 1. | Is referred to as the source or sender of the event
的对象称为事件的源或发送者。 |
| 2. | C . o . d . : expires in 3 days , returned to sender when expired
3天过期，过期后将物品返回给发送者。 |
| 3. | This message does not include the sender ' s digital signature
此消息中没有包含发送者的数字签名。 |
| 4. | Identify a specific bad sender
识别特定的恶意邮件发送者。 |
| 5. | Package : expires in 30 days , returned to sender when expired
包袱： 30天过期，过期后物品返回发送者。 |
| 6. | The message appears to have been altered after the sender signed it
此消息在发送者签名之后被修改了。 |
| 7. | What do you put on the fax cover page other than from and to
传真首页上除了发送者和接收者还写些什么？ |
| 8. | The sender of the event , which is the
事件的发送者，它是 |
| 9. | Is used to ensure that a sender cannot deny sending the xml
抗否认性用于保证发送者不能否认发送了xml 。 |
| 10. | A : what do you put on the fax cover page other than from and to
传真首页上除了发送者和接收者还写些什么？ |
