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一、填空题(每空3分,共34分)1.不同发声体发声的部位不同,蟋蟀是靠的振动,人是靠的振动.2.各种乐器发声的部位也不同,口琴是靠的振动,二胡是靠的振动,笛子是靠的振动.3.敲锣发声时,用手按住锣面,锣面停止,锣声消失,登月宇航员即使距离很近,也听不到对方讲话的声音,这是由于月球
First, fill in the blanks (3 points for each space, a total of 34 points) 1. Different sounding body vocal parts are different, 蟋蟀 is rely on the vibration, people rely on the vibration. 2 various parts of the sound of the instrument is also different, the harmonica is by The vibrating vibration of the erhu is the vibration of the erhu, and the flute is the vibration of the gong. 3. When the gong sounds, the pimple is pressed by the hand and the pimple is stopped. The buzzing disappears. The astronauts on the moon can not hear even if they are close to each other. The voice of the other party’s speech, this is due to the moon