A.相交,且交点在第I象限 |
B.相交,且交点在第II象限 |
C.相交,且交点在第IV象限 |
D.相交,且交点在坐标原点 |
|
1 |
2 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
3 |
A.a<b<c<d | B.d<b<c<a | C.d<c<b<a | D.c<d<a<b |
|
1 |
2 |
A.(0,+∞) | B.[1,+∞) | C.(4,+∞) | D.R |
|
1 |
4 |
A.9 | B.-9 | C.
| D.-
|
1 |
2 |
A.
| B.
| C.
| D.
|
A.-1 | B.0 | C.1 | D.2 |
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