string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E5%9B%BD%E5%A2%83%E5%86%85%E8%91%97%E5%90%8D%E7%9A%84%E6%B5%B7%E5%B3%A1 => Received HTTP code 403 from proxy after CONNECT"
中国境内著名的海峡
