string(279) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=cpa%E6%A8%A1%E6%8B%9F%E8%80%83%E8%AF%95%E7%94%A8%E4%BB%80%E4%B9%88%E8%BD%AF%E4%BB%B6%E6%AF%94%E8%BE%83%E5%A5%BD => Failed to connect to 125.88.227.171 port 38062: Connection refused"
cpa模拟考试用什么软件比较好
