Lesson 61 Trouble with the Hubble
What is the special importance of a telescope in space? The Hubble telescope was
launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
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| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
|---|---|---|---|---|---|---|---|
| 《新概念二 lesson 61-63》 | 2841字 | 1.0分钟 | 100% | 80 CPM | 13 次 | 0 | 不及格，加强练习！ |
| Inspirational quotes: 经验、环境和遗传造就了你的面目，无论是好是坏，你都得耕耘自己的园地；无论是好是坏，你都得弹起生命中的琴弦。 ——卡耐基 | |||||||
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