Ank_Age !!!Quiz!!!

Ank_Age !!!Quiz!!!

know how powerful your math is. You are looser in math ? You are master in math. ?

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Ank_Age !!!Quiz!!!
19x10=?
题 1 out of 5
Ank_Age !!!Quiz!!!
1/0
题 2 out of 5
Ank_Age !!!Quiz!!!
1/0 x 0 + 1 -1+?
题 3 out of 5
Ank_Age !!!Quiz!!!
who invented zero(0)?
题 4 out of 5
Ank_Age !!!Quiz!!!
who gave "e=(mc)2"
题 5 out of 5