AB |
BC |
CA |
AB |
AC |
A.0 | B.1 | C.
| D.2 |
AB |
AC |
|
|
|
|
1+1-1 |
DC |
1 |
2 |
AB |
AD |
BC |
A.平行四边形 | B.矩形 | C.等腰梯形 | D.菱形 |
AB |
AC |
BC |
A.[3,17] | B.(3,17) | C.[3,10] | D.(3,10) |
a |
b |
a |
b |
A.3
| B.
| C.7 | D.
|
a |
b |
a |
b |
a |
b |
A.2 | B.4 | C.12 | D.2
|
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
3 |
b |
3 |
a |
b |
A.
| B.2
| C.2 | D.4 |
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