Ordinary computer keyboard is designed for double-hand manipulation, but it is not so convenient for special users as who have only one hand.
普通计算机键盘是为双手操作设计的，对于一些特殊的使用者比如只有一只手的操作者来讲使用起来就很不方便。
Malicious tampering with the type of document to conceal identity documents so as to entice users to visit real structure, avoiding detection and hiding data is the most common computer crime means.
恶意篡改文件的类型属性以掩盖文件真实结构达到诱骗用户访问、回避检测、隐藏数据等目的是计算机犯罪行为中最常用的手段。
Features: the product is specifically designed for people who work long hours in their seats, such as computer users, clerks, drivers and so on.
特点：本产品专为长期坐着工作的人士而设计，如使用电脑者、文员、司机等。
Features: the product is specifically designed for people who work long hours in their seats, such as computer users, clerks, drivers and so on.
特点：本产品专为长期坐着工作的人士而设计，如使用电脑者、文员、司机等。
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