AC |
a |
BD |
b |
AE |
a |
b |
AC |
a |
BD |
b |
AE |
AO |
OE |
1 |
2 |
a |
| ||||
2 |
1 |
2 |
a |
| ||||
4 |
3
| ||
4 |
1 |
4 |
b |
3 |
4 |
a |
1 |
4 |
b |
A |
B |
C |
0 |
A.2 | B.
| C.3 | D.
|
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分又不必要条件 |
AP |
1 |
3 |
AB |
AC |
A.0<t<
| B.0<t<
| C.0<t<
| D.0<t<
|
AC |
AB |
AD |
A.ABCD为矩形 | B.ABCD是菱形 |
C.ABCD是正方形 | D.ABCD是平行四边形 |
PA |
PB |
PC |
0 |
© 2017-2019 超级试练试题库,All Rights Reserved.