|PF| |
|PD| |
|QF| |
|BF| |
|AO| |
|BO| |
|AF| |
|AB| |
|FO| |
|AO| |
A.1个 | B.3个 | C.4个 | D.5个 |
x2 |
a2 |
y2 |
b2 |
|PF| |
|PD| |
a2 |
c |
b2 |
c |
b2 |
a |
|QF| |
|BF| |
c |
a |
a2 |
c |
|AO| |
|BO| |
c |
a |
a2 |
c |
a |
c |
|AF| |
|AB| |
c |
a |
|FO| |
|AO| |
c |
a |
C |
2 |
1 |
2 |
AH |
BC |
AB |
CA |
CB |
A.
| B.
| C.
| D.
|
x2 |
a2 |
y2 |
b2 |
x2 |
m |
y2 |
n |
x2 |
a2 |
y2 |
b2 |
3 |
2 |
1 |
2 |
x2 |
16 |
y2 |
9 |
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