string(253) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%9B%E5%B7%9D2020%E4%BA%8C%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
四川2020二级建造师答案
