string(240) "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%B7%A5%E7%A8%8B%E6%B3%95%E8%A7%84%E7%9C%9F%E9%A2%98 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
二建工程法规真题
