string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9D%E7%BA%A7%E4%BC%9A%E8%AE%A1%E6%A8%A1%E6%8B%9F%E8%AF%95%E9%A2%98 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
初级会计模拟试题
