string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E4%BA%8C%E5%BB%BA%E8%80%83%E8%AF%95%E7%AC%AC%E4%BA%8C%E6%89%B9 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
2021年二建考试第二批
