string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E7%BB%99%E9%A2%86%E5%AF%BC%E6%8F%90%E5%BB%BA%E8%AE%AE%E8%8C%83%E6%96%87 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
怎么给领导提建议范文
