string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B0%B4%E5%88%A9%E9%80%A0%E4%BB%B7%E5%B7%A5%E7%A8%8B%E5%B8%88%E9%A2%98%E5%BA%93 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
水利造价工程师题库
