string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BE%8E%E5%9B%BD%E6%81%90%E6%80%96%E4%B8%BB%E4%B9%89%E5%90%8D%E5%8D%95 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
美国恐怖主义名单
