string(266) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B0%81%E8%A2%AB%E5%85%AC%E8%AE%A4%E4%B8%BA%E5%BC%80%E5%88%9B%E7%A4%BE%E4%BC%9A%E5%AD%A6%E7%9A%84%E9%BC%BB%E7%A5%96 => Received HTTP code 403 from proxy after CONNECT"
谁被公认为开创社会学的鼻祖
