PA |
PB |
PC |
A.-1 | B.-2 | C.2 | D.-4 |
PB |
PC |
PM |
PA |
PA |
PA |
PB |
PC |
PA |
PA |
PA |
a |
b |
a |
b |
a |
b |
a |
b |
A.
| B.
| C.
| D.
|
a |
b |
c |
a |
b |
c |
a |
c |
d |
d |
A.(2,6) | B.(-2,6) | C.(2,-6) | D.(-2,-6) |
a |
b |
c |
a |
b |
c |
a |
b |
c |
A.[1,2] | B.[1,3] | C.[1,
| D.[1,
|
A.6 | B.2 | C.2
| D.2
|
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