单项选择题
3, 9, 27, 81,( ) A.243 B.342 C.433 D.135
单项选择题3, 9, 27, 81,( )
34, 35, 69, 104, ( ) A.138 B.139 C.173 D.179
单项选择题34, 35, 69, 104, ( )
3, 4, 6, 9, ( ), 18 A.11 B.12 C.13 D.14
单项选择题3, 4, 6, 9, ( ), 18