string(269) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=19%E5%B9%B4%E6%B0%B4%E5%88%A9%E4%B8%80%E5%BB%BA%E5%AE%9E%E5%8A%A1%E6%A1%88%E4%BE%8B%E7%AD%94%E6%A1%88 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
19年水利一建实务案例答案
