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Lilit [14]
3 years ago
9

PLZZZZZZZZZZZZZZZZZ I REALLY NEED THE ANSWER PLZZZZZZZZZZZZZZZ HELP ME ASAP!!!

Physics
2 answers:
Rashid [163]3 years ago
7 0
I think it's RF technology
makkiz [27]3 years ago
3 0
1. RF, I think
2. infrared
3.?
4.?
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