string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B9%BF%E5%91%8A%E5%85%AC%E5%8F%B8%E7%BB%8F%E8%90%A5%E5%86%85%E5%AE%B9%E6%80%8E%E4%B9%88%E5%86%99 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
广告公司经营内容怎么写
