1.

The human ear responses to vibrations ranging from ___________

A. 20KHz – 20MHz
B. 2KHz – 20MHz
C. 20Hz – 20KHz
D. 2Hz – 2KHz
Answer» D. 2Hz ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2KHz


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