string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B0%B4%E5%88%A9%E7%9B%91%E7%90%86%E8%80%83%E8%AF%95%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
水利监理考试答案
