string(287) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%B9%B4%E4%B8%80%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E5%95%A5%E6%97%B6%E5%80%99%E5%8F%AF%E4%BB%A5%E6%B3%A8%E5%86%8C => Failed to connect to 14.18.117.71 port 38133: Connection refused"
2020年一级建造师啥时候可以注册
