string(319) "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%9A%84%E7%BB%8F%E8%90%A5%E8%8C%83%E5%9B%B4%E6%80%8E%E4%B9%88%E5%86%99%E6%89%8D%E6%AD%A3%E7%A1%AE%E4%B8%80%E7%82%B9 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
广告公司的经营范围怎么写才正确一点
