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%E5%BB%BA%E6%9C%BA%E7%94%B5%E8%AF%95%E5%8D%B7 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
2020年一建机电试卷
