問題詳情
6.( )正常的人耳聽不到下列哪一種聲音？
(A)由水底向水面發出的聲音
(B)狗叫聲
(C)振動頻率為 8000 赫的聲音
(D)蝙蝠發射的超聲波
(A)由水底向水面發出的聲音
(B)狗叫聲
(C)振動頻率為 8000 赫的聲音
(D)蝙蝠發射的超聲波
參考答案
無參考答案
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