protection
完美口令 : 菜鸟也能防黑客 : selection, protection, authentication.pdf
用户的口令密码就是通向网络世界的钥匙，每位计算机用户都面临着严重的安全问题。本书向读者展示如何选择一个符合要求的口令，如何选择一个强有力而又容易记忆的口令。
信息资源开放与开发问题研究 : 基于信息权利全面保护的视域 : based on the view of overall protection of information right.pdf
本书研究了信息权利的内在意蕴及其相关理论，涉及信息权利类型和构成要素、当前我国信息立法中权利导向缺失现状、以及信息权利的内容；论述了保障和发展信息资源开放与开发的政策途径、制度途径和理论途径；提出了信息资源规划机制、信息资源开放与开发的运行机制、信息资源开发服务的知识产权保护机制
They began to draft ______on labour protection.
They began to draft ______on labour protection. B
Last year ______ of new books were published on environmental protection.
Last year ______ of new books were published on environmental protection.B
They began to draft ______on labour protection.
They began to draft ______on labour protection. B