string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%BD%E5%BC%80%E5%BB%BA%E8%AE%BE%E6%B3%95%E8%A7%84%E6%9C%BA%E8%80%830001 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
国开建设法规机考0001
