教科科学六下《2.4小苏打和白醋的变化》[王老师]『市一等奖』优质课 小苏打和白醋的变化优质课视频 白醋和小苏打的变化教学评课稿 小苏打和白醋的公开课 小苏打和白醋的变化说课优秀案例 科学小苏打与白醋的反应优质课 小苏打与白醋实验优质课 小苏打与白醋创新实验说课视频 小苏打和白醋的变化优质课教案 小苏打和白醋的变化实验教学说课 名师微课小苏打和白醋 《小苏打和白醋的变化》公开课 优质课【特级教师 新课标】
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我来说两句