string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%86%8C%E6%B6%88%E9%98%B2%E5%B7%A5%E7%A8%8B%E5%B8%88%E7%9A%84%E6%8A%A5%E8%80%83%E6%97%B6%E9%97%B4%E6%98%AF%E5%87%A0%E6%9C%88%E4%BB%BD => Failed to connect to 14.18.117.71 port 38041: Connection refused"
注册消防工程师的报考时间是几月份
