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Text Details
 
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即使是最好的，設計的椅子將無法彌補不良姿勢。不良姿勢是根的許多物理問題。因此，坐端正，不要含糊。你的背部要伸直，以支持上部你的身體。
— Mastering Computer Typing (1995) (掌握電腦打字（1995）)
 (book)
by Sheryl Lindsell-Roberts
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| Language: | Chinese_Traditional |
This text has been typed
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| Avg. speed: | 47 WPM |
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| Avg. accuracy: | 61.4% |