我正在运行两个绑定服务器，一个激活的查询日志记录，但不知道我在这里看到了什么，也没有在网上找到任何启发我的东西；
31-Oct-2017 17:56:35.464 queries: client x.x.x.x#55638: query: test.example.com IN A +
31-Oct-2017 17:56:35.464 queries: client x.x.x.x#55638: query: test.example.com IN A +
31-Oct-2017 16:34:07.505 queries: client x.x.x.x#2968: query: test.example.com IN A -ED
31-Oct-2017 16:45:23.316 queries: client x.x.x.x#36192: query: test.example.com IN A -EDC
31-Oct-2017 18:02:12.711 queries: client x.x.x.x#37001: query: test.example.com IN A +E
在 A-、A+、-E、+E、-ED、-EDC 行的末尾是我试图理解的；