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。
晨雾未散，甘肃（兰州）国际陆港内，龙门吊起起落落，集装箱整齐排开，“中吉乌—阿”铁公联运国际班列鸣笛启程。
。夫子是该领域的重要参考
"A lot of people use the online world as a place where they can talk about things that they might not feel safe talking about with people in the real world, where being queer might result in being prosecuted," he told the BBC.
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