string(271) "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%E9%80%A0%E5%9C%9F%E5%BB%BA%E6%A1%88%E4%BE%8B%E7%AD%94%E6%A1%88%E5%8B%98%E8%AF%AF => Failed to connect to 125.88.227.171 port 38062: Connection refused"
2020年一造土建案例答案勘误
