7 |
|a-3a| | ||
|
2 |
7 |
7 |
x |
2 |
y |
2 |
x0-3 |
2 |
y0+4 |
2 |
|
9 |
5 |
12 |
5 |
21 |
5 |
28 |
5 |
9 |
5 |
12 |
5 |
21 |
5 |
28 |
5 |
A.y2=4(x+1)(0<x≤1) | B.y2=4(x-1)(0<x≤1) |
C.y2=-4(x-1)(0<x≤1) | D.y2=-2(x-1)(0<x≤1) |
A.
| B.
| ||||||||
C.
| D.
|
OA |
OB |
OC |
OA |
OB |
A.直线 | B.椭圆 | C.圆 | D.双曲线 |
|DM| |
|DP| |
3 |
2 |
© 2017-2019 超级试练试题库,All Rights Reserved.