string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%AE%9E%E5%8A%A1%E8%80%83%E8%AF%9550%E5%88%86 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
二建实务考试50分
