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1、30分鐘以內做出來:智力很高很高很高,不知道有多高。 3 W( ]$ P. P' f; c1 g
因為我以前做過 + y: W+ k" M- c ; m6 d E0 a7 ethx~~~
Give it 3 parts - 4ball in a group...than u will find out which group is more heavy...than from the group of more heavy using same formula and do it again lah...maybe can get answer...let me c the answer first lah...