网络安全的基本目标是保证信息的机密性、可用性、合法性和【 】。
参考答案：完整性
解析：网络安全的基本要素就是要实现信息的完整性、机密性、可用性和合法性。
His new book _____ next month. [ ]
A. will be published
B. is publishing
C. is being published
3a2b（2ab3-4a3b+5a4）=______．
