string(301) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E4%BB%B7%E5%B8%88%E5%8D%B7%E5%AD%90%E9%A2%98%E7%9B%AE%E7%AD%94%E6%A1%88%E9%A1%BA%E5%BA%8F%E4%B8%8D%E4%B8%80%E6%A0%B7 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
一造价师卷子题目答案顺序不一样
