환경보호 매일 한 장, 4.10 참여 시 보상 5, 정답을 맞히면 추가로 5 지급
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다중 선택 문제: 모래먼지 날씨는 몇 가지로 나뉩니까? ( ) A. 떠다니는 먼지 B. 날리는 모래 C. 모래폭풍 D. 모래먼지 A, B, CA. 미세먼지
B. 모래바람
C. 모래폭풍
D. 모래먼지
B、모래바람
C、사막폭풍
B、모래바람
C、모래폭풍
D、모래먼지
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