string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%8A%E5%B9%B4%E4%BA%8C%E5%BB%BA%E8%80%83%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
今年二建考题答案
