// 易错点4：栈空时返回1而非i+1 → 仅i=0时正确，i0时（如i=3）会返回1而非4
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。
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2024年12月23日 星期一 新京报
The company's image was challenged after reports that the US military used its AI model Claude during the operation that led to the capture former Venezuelan President Nicolás Maduro in January.