string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E7%90%86%E5%90%84%E7%A7%91%E5%A4%9A%E5%B0%91%E9%81%93%E9%A2%98 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
监理各科多少道题
