OA |
OB |
OC |
0 |
OA |
OB |
OC |
0 |
OB |
OC |
OA |
2k2-4k+3 |
2k2-4k |
3 |
2(k2-2k) |
3 |
2(k2-2k) |
3 |
2 |
3 |
2(k2-2k) |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
3 |
2 |
1 |
2 |
OA |
OB |
OC |
0 |
OB |
OC |
OA |
OB |
OC |
OA |
OB |
OA |
OB |
OA |
OB |
OA |
OB |
1 |
2 |
OA |
OB |
3 |
π |
2 |
π |
2 |
1 |
2 |
2 |
5 |
A.-
| B.
| C.-
| D.
|
3 |
| ||
sin170°-
|
3 |
5 |
1 |
5 |
© 2017-2019 超级试练试题库,All Rights Reserved.