1 |
2 |
x2 |
4 |
y2 |
12 |
x2 |
m |
y2 |
n |
n |
m |
x2 |
4 |
y2 |
12 |
x2 |
m |
y2 |
n |
| ||
|
1+
|
1+
|
1 |
2 |
5 |
4 |
n |
m |
21 |
4 |
x2 |
m |
y2 |
n |
x2 |
-m |
y2 |
-n |
| ||
|
1+
|
1+
|
1 |
2 |
4 |
21 |
n |
m |
4 |
5 |
4 |
21 |
4 |
5 |
5 |
4 |
21 |
4 |
x2 |
a2 |
y2 |
b2 |
A.
| B.
| C.
| D.2 |
x2 |
3 |
y2 |
4 |
A.
| B.
| ||||||||
C.
| D.
|
x2 |
a2 |
y2 |
b2 |
A.2 | B.4 | C.8 | D.9 |
© 2017-2019 超级试练试题库,All Rights Reserved.