string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BF%84%E7%BD%97%E6%96%AF%E7%89%88%E5%9B%BE%E6%AF%94%E4%B8%AD%E5%9B%BD%E5%A4%A7%E5%A4%9A%E5%B0%91 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
俄罗斯版图比中国大多少
