string(261) "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%E5%BB%BA%E9%80%A0%E5%B8%88%E8%80%83%E8%AF%95%E7%AD%94%E6%A1%88 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
2021年二建建造师考试答案
