76. The speed of radio waves is ___than that of sound waves.
76. The speed of radio waves is ___than that of sound waves.
发布时间：2025-07-09 01:49:51
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- 1.76. The speed of radio waves is ___than that of sound waves.
- 2.Interference can be observed for electromagnetic waves but not for sound waves.
- 3.The speed of sound in the atmosphere
- 4.In__________ phonetics, we investigate the properties of the sound waves.
- 5.Another term for the speed of sound is what? （ ）。
- 6.The speed of sound is higher in water on in the air?
- 7.翻译：“Since sound waves are carried by motion of matter, there must be matter around for the waves to travel
- 8.Sound waves reflected from a hill can be used to estimate the ________.
- 9.5G radio waves can’t carry data far. How to solve this problem?（ ）。
- 10.翻译：Nothing in the world travels faster than the electromagnetic waves.
