A.(1,
| B.(
| C.(2,e) | D.(e,+∞) |
1 |
10 |
1 |
e2 |
3 |
2 |
3 |
2 |
3 |
2 |
3 |
2 |
1 |
2 |
3 |
2 |
3 |
2 |
3 |
2 |
A.f(x1)<0,f(x2)<0 | B.f(x1)<0,f(x2)>0 |
C.f(x1)>0,f(x2)<0 | D.f(x1)>0,f(x2)>0 |
1 |
x |
A.(-log2
| B.(1,+∞) | C.(0,log2
| D.(1,log2
|
1 |
x |
A.(0,
| B.(
| C.(1,2) | D.(2,3) |
A.(
| B.(
| C.(
| D.( 1,2 ) |
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