string(310) "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%E6%8A%80%E6%9C%AF%E8%B4%9F%E8%B4%A3%E4%BA%BA%E4%B8%BB%E8%A6%81%E8%81%8C%E8%B4%A3%E8%8C%83%E5%9B%B4%E6%80%8E%E4%B9%88%E5%86%99 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
项目技术负责人主要职责范围怎么写
