챕터 1. 소리의 특징
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Question 1 of 2
1. Question
야외 공연 시 주간보다 야간에 더 멀리 소리가 전달되는 현상은?
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Question 2 of 2
2. Question
다음 중 야외에서 발생하는 굴절 현상으로 인한 결과가 아닌 것은?
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