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13
Ŀƣ ʱ䣺 1 2 ÷ ¹ʿ һְλ 80 10 10 20 10 30 10 10 10 10 200 3 ȫúԱ䱸 4 5 6 7 8 9 10 ϼ
ƶȽճ Ӫذȫ ҵ ʩе豸 õ簲ȫ ʩͨȫ ȫ 14
2-1
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ְȺ彡8 ¹ ҵ˺ж¹ 10˼ְһ20 ϼƵ÷
16