神经性厌食和神经性贪食不同的是
D
暂无解析
设三角区域 D 由直銭 x+8y-56=0 ,x-6y+42=0 与 kx-y+8- 6k=0(k <0) 围成,则对任意的 (x,y) ,有㏒ (x 2+y 2)≤2
(1) k ∈(- ∞,-1]
(2)k ∈ (-1,1/8]
When workers are organized in trade unions, employers find it hard to lay them ________.
We aim to ensure that all candidates are treated fairly and that they have equal______to employment opportunities .