string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%AF%94%E8%BE%83%E9%80%82%E5%90%88%E5%A5%B3%E7%94%9F%E7%9A%84%E5%B7%A5%E7%A7%91%E4%B8%93%E4%B8%9A => Failed to connect to 101.89.159.206 port 38187: Connection refused"
比较适合女生的工科专业
