string(345) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E8%80%83%E8%AF%95%E7%AD%94%E6%A1%88%E8%83%BD%E4%B8%8D%E8%83%BD%E5%86%99%E5%88%B0%E6%A9%A1%E7%9A%AE%E4%B8%8A%E5%B8%A6%E5%87%BA%E6%9D%A5 => Failed to connect to 14.18.46.51 port 38044: Connection refused"
一级建造师考试答案能不能写到橡皮上带出来
