題目列表(包括答案和解析)
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A、
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B、
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C、
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D、
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| x2 |
| 3 | x3 |
| |x| |
| x |
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| 2n+1 | x2n+1 |
| 2n-1 | x |
| x |
| x+1 |
| x2+x |
| A、① | B、② | C、③ | D、④ |
有下列數組排成一排:
如果把上述數組中的括號都去掉會形成一個數列:
![]()
有同學觀察得到
,據此,該數列中的第2011項是
![]()
![]()
![]()
![]()
有下列數組排成一排:
如果把上述數組中的括號都去掉會形成一個數列:
,則此數列中的第2011項是
![]()
![]()
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