A、 B、 C、 D、……

问答题BLP的安全策略对所有主体和客体都分配一个访问类属性,包括主体和客体的 ___ 和___, 系统通过比较主体和客体的___ 控制主体对客体的访问。

问答题From the perspective of human resources, low-end manufacturing has the characteristics of low added value,[填空1][填空2]. Correspondingly, the jobs provided by it have the characteristics of low income, low technical skills and [填空3].