string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%B8%82%E6%94%BF%E5%85%AC%E7%94%A8%E5%B7%A5%E7%A8%8B%E8%AF%95%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
二建市政公用工程试题答案
