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 | 5.8分钟 | 100% | 155 CPM | 17 次 | 0 | 及格,继续努力! |
Inspirational quotes: 人们对于进退事情,往往不容易看得开,但有时间为情况需要,却不要不有所决定,或者,即使并无情势逼迫,也必须决定自己的进退事宜。 ——松下幸之助 | |||||||
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