string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%91%E5%8D%97%E4%BA%8C%E5%BB%BA%E6%9C%BA%E8%80%83%E5%A4%9A%E9%80%89%E9%A2%98%E5%B0%91%E9%80%89%E5%8F%AF%E4%BB%A5%E5%90%97 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
云南二建机考多选题少选可以吗
