string(259) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=21%E5%B9%B4%E6%B3%A8%E5%86%8C%E7%9B%91%E7%90%86%E5%B7%A5%E7%A8%8B%E5%B8%88%E8%80%83%E8%AF%95%E7%AD%94%E6%A1%88 => Received HTTP code 403 from proxy after CONNECT"
21年注册监理工程师考试答案
