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.
Rig...
| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
|---|---|---|---|---|---|---|---|
| 《新概念二 lesson 61-63》 | 2804字 | 1.0分钟 | 100% | 94 CPM | 3 次 | 0 | 不及格，加强练习！ |
| Inspirational quotes: 此地曾经翠辇过，浮云流水竟如何，香销南国美人尽，怨入东风芳草多。 ——刘沧 | |||||||
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