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[案例](片段): 题目:一个大月饼平放在桌上,用刀往下切。切一刀分成2块,切2刀最多分成4块,切3刀最多分成几块? 师:谁能很快地说出结论?
[Case] (fragment): Title: A large moon cake flat on the table, cut down with a knife. Cut a knife into 2, cut 2 knife up to 4, cut 3 knife into the most? Teacher: Who can quickly conclude?