string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B7%B4%E9%BB%8E%E5%92%8C%E4%BC%9A%E9%A1%BE%E7%BB%B4%E9%92%A7%E7%9A%84%E5%8F%91%E8%A8%80%E5%8E%9F%E8%AF%9D => Received HTTP code 403 from proxy after CONNECT"
巴黎和会顾维钧的发言原话
