(1-a)2 |
1 |
m+3 |
A.1 | B.2 | C.3 | D.4 |
5±
| ||
2 |
5+
| ||
2 |
3+
| ||
2 |
(1-a)2 |
5-
| ||
2 |
| ||
2 |
(1-a)2 |
1 |
m+3 |
a |
|a| |
b |
|b| |
c |
|c| |
|ab| |
ab |
|ac| |
ac |
|bc| |
bc |
A.a>0 | B.a<0 | C.a>-1 | D.-1<a<0 |
A.2 | B.3 | C.1 | D.不确定 |
|a|b |
a|b| |
|b|c |
b|c| |
|c|a |
c|a| |
A.3 | B.1 | C.-1 | D.不唯一确定 |
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