3 |
2x |
A.y1<y2<y3 | B.y2<y1<y3 | C.y3<y2<y1 | D.y3<y1<y2 |
3 |
2x |
3 |
2 |
2 |
x |
A.y3<y2<y1 | B.y1<y2<y3 | C.y2<y1<y3 | D.y2<y3<y1 |
k |
x |
A.y1<0<y2 | B.y3<0<y1 | C.y2<y1<y3 | D.y3<y1<y2 |
k |
x |
3 |
2 |
k1 |
x |
k2 |
x |
k3 |
x |
A.k1<k2<k3 | B.k1<k3<k2 | C.k3<k2<k1 | D.k2<k1<k3 |
4 |
x |
A. | B. | C. | D. |
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