string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BA%BF%E4%B8%8A%E5%85%BC%E8%81%8C%E6%8E%A8%E5%B9%BF%E4%BA%BA%E5%91%98%E7%9A%84%E5%B7%A5%E4%BD%9C%E5%86%85%E5%AE%B9%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
线上兼职推广人员的工作内容是什么
