找槼律填空: (1)1,3,9,27,_,243 (2)2,7,12,22,_,_,37 (3)5,8,11,15_ (4)1,1,2,3,5,8,_21.
找槼律填空:
(1)1,3,9,27,______,243
(2)2,7,12,22,______,______,37
(3)5,8,11,15______
(4)1,1,2,3,5,8,______21.
(1)1,3,9,27,______,243
(2)2,7,12,22,______,______,37
(3)5,8,11,15______
(4)1,1,2,3,5,8,______21.
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