【单选题】超级用户root的UID是以下哪个选项?
【判断题】性格和职业的关系是一种彼此制约关系,只能扬长避短,无法相互促进。
【判断题】世界卫生组织(WHO)主要负责制定推荐的食品卫生标准及食品加工规范,协调各国的食品卫生标准并指导各国和全球食品安全体系的建立。
【判断题】In TBL, four skills are naturally integrated, which is different from PPP that only provides a framework for grammar and form-focused practice and needs to be supplemented by listening and reading les...
【判断题】In TBL, four skills are naturally integrated, which is different from PPP that only provides a framework for grammar and form-focused practice and needs to be supplemented by listening and reading les...
【判断题】劳动分工是依存于交换的,因此必须有货币来促进劳动分工。
【单选题】()特点是耐热、抗寒。但是它遇到强酸、强碱时会有游单体聚苯乙烯离出来,对人体健康有损,所以不能盛装强酸(如橙汁)、强碱性物质。
【判断题】每一种生物都能在人为分类法中找到自己的分类位置,具有一一对应的关系。