問題詳情
11. 已知 a：b：c＝11：13：15，則下列敘述何者不正確？
(A) 
(B) a：b：c＝220：260：300
(C) 15a＝11c＝13b
(D) 可假設 a＝11k，b＝13k，c＝15k，k≠0
參考答案
無參考答案
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