α |
| ||
|
|
| ||
|
|
β |
| ||
|
| ||
|
|
| ||
|
|
α |
β |
α |
CA |
CA |
CA |
α |
CA |
β |
BA |
β |
BA |
CA |
BA |
α |
β |
a |
b |
a |
b |
a |
b |
a |
A.30° | B.60° | C.120° | D.150° |
a |
b |
a |
b |
a |
b |
b |
b |
a |
b |
A.30° | B.45° | C.60° | D.120° |
a |
b |
a |
b |
2 |
3 |
AB |
AC |
A.450 | B.1350 | C.810 | D.990 |
OA |
OB |
π |
6 |
2π |
3 |
OC |
OA |
OB |
OC |
0 |
OC |
A.(0,
| B.(
| C.(
| D.(
|
© 2017-2019 超级试练试题库,All Rights Reserved.