自然灾害安全知识教育 主题班会:雷电洪灾暴雨 课件(19张PPT).pptx
BY YUSHEN
雷电/洪灾/暴雨
自然灾害事故知识教育主题班会
防
Prevention of natural disasters
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BY YUSHEN
暴雨中的自救
洪水中的自救
雷电的防护
P...