string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E6%B3%A8%E4%BC%9A%E7%BB%8F%E6%B5%8E%E6%B3%95%E6%95%99%E6%9D%90pdf%E7%99%BE%E5%BA%A6%E4%BA%91 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
2020注会经济法教材pdf百度云
