Environmental Protection Tip of the Day 8.27: Reward for participation, plus 5 more points for answering 3 questions correctly
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Multiple-choice question: When using loudspeakers to give instructions at stations, railway marshalling yards, ports, docks, airports, and other such places, it is necessary to control ( ) in order to reduce the impact of noise on the surrounding living environment. A. Sound source B. Volume C. Noise D. Range. B
When using loudspeakers to give instructions at stations, railway yards, ports, docks, airports, and other such locations, it is necessary to control the volume (at the B level) in order to reduce the impact of noise on the surrounding living environment.