【简答题】设连续型随机变量X的概率密度函数为f(x)=2x(0
【单选题】北京市食药监局2016年1月28日发布了食品安全监督抽检情况公告,一些超市销售的鲜活鱼类被检出了含有违禁物质孔雀石绿。这个事例警示企业,要维护市场秩序,必须遵循的市场规则是
【判断题】幼儿园的空间、设施、活动材料和常规要求等应有利于引发、支持幼儿的游戏和各种探索活动,有利于引发、支持幼儿与周围环境之间积极的相互作用。
【单选题】A major new development in systems of work in Britain is taking place. Flexible working hours, or 'Flextime', are catching on fast, and this trend is continuing. In 1973, over 500 organizations had ad...
【简答题】A.She didn't see it B.It had nothing to do with politics. C.Some people wouldn't find it interesting. D.The man ought to watch it again
【单选题】It is easier to adapt to new situations if one has a flexible attitude.