AC |
1 |
2 |
CB |
CE |
1 |
4 |
ED |
A.(-8,-
| B.(-
| C.(0,1) | D.(0,1)或(2,
|
AC |
1 |
2 |
CB |
1 |
2 |
1 |
2 |
1 |
2 |
CE |
1 |
4 |
ED |
DC |
CE |
8 |
3 |
11 |
3 |
8 |
3 |
11 |
3 |
OA |
OB |
OC |
AB |
A.(6,0) | B.(-6,0) | C.(-2,6) | D.(-2,0) |
. |
a |
b |
a |
. |
b |
. |
a |
b |
a |
1 |
2 |
| ||
2 |
b |
c |
a |
b |
c |
0 |
a |
b |
c |
a |
b |
b |
c |
a |
3 |
2 |
b |
1 |
3 |
a |
b |
A.60° | B.30° | C.75° | D.45° |
© 2017-2019 超级试练试题库,All Rights Reserved.