【单选题】随机误差的有界性是指在一定的测量条件下,误差的绝对值,( )。
【单选题】随机误差的有界性是指在一定测量条件下,误差的绝对值
【单选题】在我国一种具有关键性作用的法律监督形式是
【单选题】There are some students ______ to have known what they don’t really know, which is really harmful to them.
【单选题】I really don't know ______ or to leave.
【判断题】用户是通过报表实现与系统的交互式操作来操纵数据库。