IQ數列問題
76.
3 7 4 9 5 19 14
(A)21
(B)31
(C)41
(D)51
http://i.imgur.com/qA8biNM.jpg

答案 : A
不過是怎麼來的啊!
小弟我抓破懶蛋依舊想不出來
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