F |
F |
F |
F |
F |
F |
F |
F |
1 |
2 |
F |
F |
AB |
AC |
AE |
A.BC边的垂直平分线上 |
B.BC边的中线所在的直线上 |
C.BC边的高线所在的直线上 |
D.BC边所在的直线上 |
F |
F |
F |
F |
A.5
| B.5N | C.10N | D.5
|
OP |
OA |
AB |
1 |
2 |
BC |
A.垂心 | B.重心 | C.内心 | D.外心 |
AB |
DC |
A.平行四边形 | B.菱形 | C.长方形 | D.正方形 |
OA |
OB |
OC |
0 |
A.3 | B.4 | C.5 | D.6 |
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