【单选题】Which of the following is NOT one of the requirements if noise is to be controlled
A.To cultivate common politeness.
B.To tackle conflicts of interest.
C.To economize expenditure.
D.To utilize technology.
【单选题】Which of the following is NOT one of the requirements if noise is to be controlled
A.To cultivate common politeness.
B.To tackle conflicts of interest.
C.To economize expenditure.
D.To utilize technology.
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