string(287) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E4%B8%8A%E6%B5%B7%E4%BA%8C%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E7%9C%9F%E9%A2%98%E5%8F%8A%E7%AD%94%E6%A1%88 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
2021年上海二级建造师真题及答案
