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Armin

Armin yorum yaptı, 26 Temmuz 2020 13:00
Same here! I feel that the science section is disregarded to a greater extent compared to the math section!
Armin bir gönderi oluşturdu, 26 Temmuz 2020 12:59
More advanced chemistry/physics

Hey, I am a physical chemist (currently on my PhD) and Khan Academy helped me to obtain my knowledge in chemistry, physics and math. I've been a member of a Khan academy a long time now (I've stop...
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