string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E8%B6%85%E6%9C%9F%E4%BA%86%E4%BC%9A%E4%B8%8D%E4%BC%9A%E4%BD%9C%E5%BA%9F => Failed to connect to 101.89.166.210 port 38089: Connection refused"
二级建造师超期了会不会作废
