7 小苏打和白醋的变化 张文娅 小学科学11263 任务群 新课标 小苏打和白醋的变化实验说课视频 小苏打和白醋的变化实验说课稿 白醋和小苏打的变化教学评课稿 白醋和小苏打实验优质课 小苏打和白醋的变化优质课 小学科学小苏打和白醋的变化说课 小苏打和白醋的变化说课优秀案例 小学自然科学优质课醋和小苏打 小苏打和白醋的变化优质课教案 小学科学说课视频小苏打和白醋 小学科学《 小苏打和白醋的变化 》公开课【全国大赛实验教学说课优质课】
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我来说两句