例句與造句

1. William ， stallings , cryptography and network security , - principles and practics , second edition , prentice hall international , inc . , 2000
   楊明等譯， 《密碼編碼學(xué)與網(wǎng)絡(luò)安全：原理與實(shí)踐》 （第二版） ，電子工業(yè)出版社，北京， 2001 。
2. It's difficult to find cryptography and network security in a sentence. 用cryptography and network security造句挺難的