π λ¬Έμ μ ν (ν΄λ¦νμ¬ μ΄λ)
π
0/20
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0
β
Correct
0
β Wrong
0:00
β±οΈ Time
β νλ¦° λ¬Έμ λͺ¨μ
All 3 correct! Amazing! β
20 Essential Problems Β· Korean Students' Most Missed Topics
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