Which of the following words best describes the tone of this

Which of the following words best describes the tone of this passage?

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阅读下列短文,回答题:Computers are very versatile. This sentence means

阅读下列短文,回答题:Computers are very versatile. This sentence means( )

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阅读下列短文,回答题:This passage mainly tells us( )

阅读下列短文,回答题:This passage mainly tells us( )

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了保持义齿稳定,放置间接固位牙合支托的最佳位置是

了保持义齿稳定,放置间接固位牙合支托的最佳位置是

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