首次徒步爬山，误闯深山老林，徒手爬悬崖，两度滑落险些丧命 我准备离开义乌了，去杭州，25号之前房租到期，在此之前再看看义乌 … ← Perceived Fairness in Networks Questions about statistical claims in paper from recent Nobel prize winners; some general challenges in trying understand nonlinear patterns using quadratic regression →