string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E5%B8%88%E8%80%83%E8%AF%95%E7%85%A4%E7%9F%BF%E5%AE%9E%E5%8A%A1%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
注安师考试煤矿实务答案
