A.3x+2y-1=0 | B.3x+2y+7=0 | C.2x-3y+5=0 | D.2x-3y+8=0 |
2 |
3 |
3 |
2 |
3 |
2 |
A.-
| B.-
| C.
| D.
|
A.2x-y+7=0和x-3y-4=0 | B.x-2y+7=0和3x-y-4=0 |
C.x-2y+7=0和x-3y-4=0 | D.2x-y+7=0和3x-y-4=0 |
A.3x-4y-11=0 |
B.3x-4y-11=0或3x-4y+9=0 |
C.3x-4y+9=0 |
D.3x-4y+11=0或3x-4y-9=0 |
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