AB |
AC |
AD |
A.(2,4) | B.(1,1) | C.(-1,-1) | D.(-2,-4) |
AB |
AC |
BC |
AC |
AB |
AD |
BC |
MN |
MP |
NQ |
QP |
AB |
a |
AD |
b |
a |
b |
a |
b |
AC |
AB |
AD |
A.矩形 | B.菱形 | C.正方形 | D.平行四边形 |
OA |
a |
OB |
b |
AP |
A.
| B.-
| C.
| D.-
|
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
A.①③⑤ | B.④⑤ | C.①④⑤ | D.②④ |
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