一道(声波/频率)的物理题
Soundcanbreakglass.Whichbreaksmosteasily:
1.Aglasspaneexposedtoaloud,shortsound2.Aglasspaneexposedtoacertainloudtone3.Acrystalglassexposedtoaloud,shortsound4.Acrystalglassexposedtoacertainloudtone
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