优点：计算简单，导数恒为1（正区间），缓解梯度消失
为政之道，得其大者可以兼其小。
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第八十七条 鼓励涉外仲裁当事人选择中华人民共和国（包括特别行政区）的仲裁机构、约定中华人民共和国（包括特别行政区）作为仲裁地进行仲裁。
The 34-year-old, from Manchester, creates sculptures out of factory waste as part of her work as artist-in-residence with one of Lancashire's oldest manufacturing companies.
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