string(251) "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%A8%8E%E6%B3%95%E8%A6%81%E8%AE%B0%E7%9A%84%E7%A8%8E%E7%8E%87 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
2020注会税法要记的税率
