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 |
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《新概念二 lesson 61-63》 | 2804字 | 3.3分钟 | 100% | 154 CPM | 47 次 | 0 | 及格,继续努力! |
Suggestion:
可能对按键不够熟悉,或者对输入法不够熟练所导致,不要急慢慢来,先打对把准确率提高,然后逐渐的加快速度,最后才能打准打快。
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Inspirational quotes: 幸福是可以通过学习来获得的,尽管它不是我们的母语。 ——韩寒 | |||||||
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