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【題目】隨著科學技術的不斷進步,一種新型鎖——“聲紋鎖已經面世,只要主人對著聲紋鎖說出事先設定的暗語,它就會自動打開,別人即使說出相同的暗語也打不開,這種聲紋鎖辨別聲音主要是依據( )

A.音色B.響度C.音調 D.聲速

【答案】A

【解析】

試題分析:音色:發聲體的聲音品質,由發聲體本身的特征決定.是區別聲音的重要標志.只要主人對著聲紋鎖說出事先設定的暗語,它就會自動打開,別人即使說出相同的暗語也打不開,是由于主人的音色與其他人的不同。

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