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优点：计算简单，导数恒为1（正区间），缓解梯度消失
，这一点在雷电模拟器官方版本下载中也有详细论述
Mr Duffy's directive came as a surprise following recent turmoil in Nasa after Mr Trump's administration announced cuts of 24% to Nasa's budgets in 2026.
Add another filter to keep only binaries between literals:
接着，刘成拿着证明、与孩子的亲子鉴定，申请在上海青浦区落户。据他回忆，派出所没有直接拒绝，但告知他材料不全，因为出生证上没有刘成的名字。对方告诉他，即使上了户口，孩子跟他也非亲属关系，未来存在法律风险。