﹣Do you have anything else to say for being late again?( )
﹣﹣No,nothing ______ sorry.
A.aboveB.behindC.fromD.but
若直线y=2x上存在点(x,y)满足约束条件,则实数m的最大值为( )
若()
双曲线的顶点到其渐近线的距离等于()
复数等于()
若集合则等于()