What is the range, in hertz, of the normal human hearing
(A) 10 Hz to 10 kHz
(B) 20 Hz to 20 kHz
(C) 2000Hz
(D) 40 Hz to 40 kHz
What is the range, in hertz, of the normal human hearing
(A) 10 Hz to 10 kHz
(B) 20 Hz to 20 kHz
(C) 2000Hz
(D) 40 Hz to 40 kHz
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