[问题2] 为上图中(2)～(6)处选择对应的设备名称。 备选设备：CMTS、以太网交换机、光收发器、光电转换节点、Cable Modem
参考答案：
解析：[问题2] (2)以太网交换机 (3)CMTS (4)光收发器 (5)光电转换节点 (6)Cable Modem[问题2] HFC应用模拟和数字传输技术，综合接入多种业务，可以实现的主要业务有电话、模拟和数字广播电视、数字交互业务等。将电话网、计算机网、有线电视网合并在一体构成的HFC网，可以提供原来三种网的业务，实现“三网合一”。 HFC的系统结构见下图，一般包括局端系统CMTS、用户终端系统和HFC传输网络。
因此，(2)～(6)设备名称依次为： (2)以太网交换机 (3)CMTS (4)光收发器 (5)光电转换节点 (6)Cable Modem
| 阅读下面短文，根据短文内容完成表格（字数不限）。 | ||||||||||||
| To dream is great, but it's even better when that dream comes true. Are you ready to turn your dreams of success into a reality? Here are 3 keys to help you do that. 1. Write your dreams down. Writing your dreams down is the first step in the process of making them come true. This will allow you to write down all the things that are floating (漂浮) around in your head. As you write, you will begin to know exactly what success is to you. This can be very useful for you. 2. Make useful goals. As soon as you have your dream written down, you need to make goals that will help you achieve that dream. One of the biggest mistakes people make here is making the goals too big. I know you have big dreams, but you need to make your goals as small as possible, and as easy as possible. The more you break down your goals, the easier they will become. 3. Be responsible for your dream. A lot of people don't take the responsibility (责任) of reaching their dreams upon themselves. Then they blame (责备) other people or the situation when their dreams never come true. The reality of it is that you are the only one responsible in the long run for achieving your dreams, no matter what situation you are in and what people you meet. | ||||||||||||
|