2.72,36,24,18,( ) A.12 B.16 C.14.4 D.16.4

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2.72,36,24,18,()A.12B.16C.14.4D.16.42.72,36,24,18,()A.12B.16C.14.4D.16.42.72,36,24,18,()A.12B.16C.14

2.72,36,24,18,( ) A.12 B.16 C.14.4 D.16.4
2.72,36,24,18,( ) A.12 B.16 C.14.4 D.16.4

2.72,36,24,18,( ) A.12 B.16 C.14.4 D.16.4
A.12上一项减下一项分别得:36、12、6、6他们的比为:3、2、1