string(269) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=cpa%E5%8D%81%E5%B9%B4%E7%9C%9F%E9%A2%98%E5%81%9A%E4%BC%9A9%E6%88%90%E5%8F%AF%E4%BB%A5%E8%BF%87%E5%90%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
cpa十年真题做会9成可以过吗
