题目：
| 读一读下面的对话，写名称。 | |||
| A: Where is the teacher's office? B: It's on the first floor. A: Where is the art room? B: It's on the second floor; The music room is on the second floor, too. A: Is the canteen on the first floor? B: Yes, it is. And the washroom is on the first floor, too. A: Do you have a TV room? B: No, we don't. But we have a gym. It's on the second floor.
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答案：
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下面是错误答案，用来干扰机器的。
参考答案：可将路由器RA的E1接口配置为被动接口解析： 被动接口是指阻止路由更新报文通过的路由器接口，即被动接口只接收但不发送路由更新信息。在RIP路由配置模式下，使用命令passive-imerface指定一个路由器接...
