1.1,1,2,2,3,4,3,5,()A.7 B.6 C.5 D.42.1,8,9,4,(),1/6A.3 B.2 C.1 D.1/3

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1.1,1,2,2,3,4,3,5,()A.7 B.6 C.5 D.42.1,8,9,4,(),1/6A.3 B.2 C.1 D.1/3

1.1,1,2,2,3,4,3,5,()A.7 B.6 C.5 D.42.1,8,9,4,(),1/6A.3 B.2 C.1 D.1/3
1.1,1,2,2,3,4,3,5,()A.7 B.6 C.5 D.42.1,8,9,4,(),1/6A.3 B.2 C.1 D.1/3

1.1,1,2,2,3,4,3,5,()A.7 B.6 C.5 D.42.1,8,9,4,(),1/6A.3 B.2 C.1 D.1/3
1.B解题思路:注意观察最中间的3和4相加是7,在3,4的两旁是2,3相加是5,2和3的两旁是2和5相加又是7,所以最后的1只能和6相加是7"