Whale song mystery solved by scientists
The humpback's song sounded so strange and haunting to sailors, they
used to think it belonged to ghosts or mythical sea creatures. Now, a study
has revealed ...
| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
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| 《Whale song mystery solved by scientists》 | 929字 | 6.8分钟 | 100% | 134 CPM | 136 次 | 0 | 及格，继续努力！ |
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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: 真正的朋友是这样一种人：他们襟怀坦荡，为人正直，有求必应，勇于冒险；他们能忍受一切，勇敢地牺牲一切，对朋友永不变心。 ——彭威廉 | |||||||
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