string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BC%9A%E8%AE%A1%E5%9F%BA%E7%A1%80%E6%95%99%E6%9D%90pdf%E7%99%BE%E5%BA%A6%E4%BA%91 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
会计基础教材pdf百度云
