如果不确定用哪个激活函数，隐藏层可以先用 ReLU，输出层按任务选择；训练中注意梯度情况，如果梯度消失或爆炸，再考虑替换或调整激活函数。
Knighthead Capital Management in early discussions
，详情可参考同城约会
'I don't want him going abroad to die' says mum of son's assisted dying wish
"But I would sit there in tears and think I'm not fine and I didn't know why."