f(x)在[0, 2]上具有连续导数,
暂无解析
设某种元件的使用寿命T的分布函数为
设(I)计算行列式A；(II)当实数a为何值时，方程组有无穷多解，并求其通解
Ifyouwanttofindadecentlocationforyourownhome,________Mr.Smithforadvice.
Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.
He________methathedecidedtoleaveonMonday.
