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RE: Why can we hear in the frequency range 20 Hz to 20 KHz only

in #health7 years ago

He doesn't seem to look deep. Just on surface... If he is a bot, then is nothing else to do just try to learn what to do.

First, mention the content, place a link even if it is your post.

I got a -vote and don't know clear why because he left general considerations.

You can try talk on discord.

I gived you my small vote :-)
Cheers.

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