string(319) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A1%B9%E7%9B%AE%E9%83%A8%E7%9A%84%E6%8A%80%E6%9C%AF%E8%B4%9F%E8%B4%A3%E4%BA%BA%E5%8F%AF%E4%BB%A5%E6%98%AF%E9%80%80%E4%BC%91%E4%BA%BA%E5%91%98%E5%90%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
项目部的技术负责人可以是退休人员吗
