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义务教育课程标准实验教科书八年级上册物理课本的P24《动手动脑学物理》中的第4小题关于“瓶子”的音调问题。原题如下:小小音乐会每人制作一件小乐器,在班里举行的小型音乐会上用自己制作的乐器进行演奏,看谁的乐器有新意,谁演奏得好。
Compulsory Education Curriculum Standards Experiment Text Book 8 of the eighth grade physics textbook “P24” “Activities and Brain Physics” in the fourth question on the tone of the “bottle”. The original questions are as follows: A small concert produces a small musical instrument for each person and plays on a small concert held in a class with a musical instrument made by himself to see who has a new musical instrument and who plays well.