Фото: NDAB Creativity / Shutterstock / Fotodom
Expected reward: Dopamine spikes when the bell rings, but not when the reward arrives (Zero TD Error: “Exactly as predicted, no need to learn”).
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Фото: Илья Питалев / РИА Новости。Line官方版本下载对此有专业解读
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（三）在铁路、城市轨道交通线路、桥梁、隧道、涵洞处挖掘坑穴、采石取沙的；