问题
填空题
电压合成式的彩电控制系统中，若波段译码器有一路信号不输出，这会造成无法收看对应（）。
答案
参考答案：频段的电视信号故障
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电压合成式的彩电控制系统中，若波段译码器有一路信号不输出，这会造成无法收看对应（）。
参考答案：频段的电视信号故障
| 从所给单词中选出符合句子意思的单词，使句意完整。 | |
2. Don't always ______ about others, we should do it by ourselves. 3. W  hen the UFO arrived, I was ______ late in my bed room.4. Nowdays, many people feel tired, so we should learn to ______. 5. My grandmother lives ______, so I visited her every weekend. 6. Now parents ______ to push their children a lot more than before. |