π |
2 |
A. | B. | C. | D. |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
2 |
x |
A.(1,
| B.(e,+∞) | C.(1,2) | D.(2,3) |
ex+x |
ex-x |
A. | B. | C. | D. |
ax+b |
x2+c |
A.a>b>c | B.a>c>b | C.b>a>c | D.b>c>a |
2 |
x |
A.(0,1) | B.(1,2) | C.(2,e) | D.(3,4) |
A.一条直线 | B.无数条直线 | C.一系列点 | D.不存在 |
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