OA |
OC |
OB |
A.1004 | B.2010 | C.2009 | D.1005 |
AB |
AC |
OB |
OA |
OC |
OA |
OB |
OA |
OC |
OA |
OC |
OB |
a1+a2010 |
2 |
a2+a2009 |
2 |
S2011 |
2011 |
S2008 |
2008 |
x2-x+n |
x2+1 |
a | n |
1 |
2 |
Sn |
n+c |
dn |
(n+36)dn+1 |
A.-8 | B.8 | C.8或-8 | D.-
|
A.S10最小 | B.S9最大 | C.S8,S9最小 | D.S8,S9最大 |
© 2017-2019 超级试练试题库,All Rights Reserved.