Which of the following statements is true about noise _______
A. It is impossible for pleasant music to become noise
B. Noise cannot be attenuated
C. Although noise can affect people's work, study and rest, it has little effect on people's health.
D. Sound waves with irregular waveforms are noise
Answer:D
Which of the following statements is true about noise _______
A. It is impossible for pleasant music to become noise B. Noise cannot be attenuated C. Although noise can affect people's work, study and rest, it has little effect on people's health. D. Sound waves with irregular waveforms are noise