string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%B9%B4%E4%B8%80%E9%80%A0%E5%9C%9F%E5%BB%BA%E7%9C%9F%E9%A2%98 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
2020年一造土建真题
