string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E7%90%86%E7%9B%B8%E5%85%B3%E7%9F%A5%E8%AF%86%E4%B8%8E%E5%B7%A5%E4%BD%9C%E5%86%85%E5%AE%B9 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
监理相关知识与工作内容
