翻译文言文。

1、臣所以去亲戚而事君者，徒慕君之高义也。

　_______________________________________________________________________

2、屈原至于江滨，被发行吟泽畔，颜色憔悴，形容枯槁。

　_______________________________________________________________________

3、秦城恐不可得，徒见欺。

　_______________________________________________________________________

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. There are two types of key technology: private key and public key. Private-key encryption methods are called (71) ciphers, information is encrypted with (72) both the sender and receiver hold privately. Public-key encryption methods are called (73) ciphers, (74) created for each user, encryption key and deception key are (75)

A．same

B．different

C．difference

D．some