|a| |
a |
b |
|b| |
|c| |
c |
|a| |
a |
b |
|b| |
|c| |
c |
A.1-b>-b>1+a>a | B.1+a>a>1-b>-b |
C.1+a>1-b>a>-b | D.1-b>1+a>-b>a |
A.原点的左边 | B.原点的右边 |
C.原点或原点的左边 | D.原点或原点的右边 |
b |
|b| |
b |
|b| |
ab |
|ab| |
A.3 | B.-1 | C.±1或±3 | D.3或-1 |
|a| |
a |
A.a>0 | B.a<0 | C.0<a<1 | D.-1<a<0 |
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