问题
判断题
国际单位制中，频率的单位名称是瓦特。
答案
参考答案：错
解析：国际单位制中，频率的单位名称是赫兹。
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国际单位制中，频率的单位名称是瓦特。
参考答案：错
解析：国际单位制中，频率的单位名称是赫兹。
| 改正下列句子。 | |
| 1. This house built 100 years ago. 2. Football plays in most countries of the world. 3. Why did the letter send to the wrong address? 4. A garage is a place where cars repair. 5. Where are you born? 6. How many languages are speaking in Switzerland? 7. Somebody broke into our house but nothing stolen. 8. When was invented the bicycle? | __________________ __________________ __________________ __________________ __________________ __________________ __________________ __________________ |