A | 44 |
②從四組(1,1),(2,2),(3,3),(4,4)中任取兩組有
C | 24 |
C | 24 |
③從四組(1,1),(2,2),(3,3),(4,4)中任取一組有
C | 14 |
C | 23 |
A | 24 |
C | 14 |
C | 23 |
A | 24 |
C | 22 |
綜上可知:用8個數(shù)字1,1,2,2,3,3,4,4可以組成不同的四位數(shù)個數(shù)是
A | 44 |
C | 24 |
C | 14 |
C | 23 |
A | 24 |
C | 22 |
故選C.
A | 44 |
C | 24 |
C | 24 |
C | 14 |
C | 23 |
A | 24 |
C | 14 |
C | 23 |
A | 24 |
C | 22 |
A | 44 |
C | 24 |
C | 14 |
C | 23 |
A | 24 |
C | 22 |