string(260) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA2021%E5%B8%82%E6%94%BF%E8%80%83%E8%AF%95%E7%AD%94%E6%A1%88%E8%AF%A6%E8%A7%A3 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
二建2021市政考试答案详解
