1 | ||||
log
|
1 | ||||
log
|
A.(-3,-2) | B.(-2,-1) | C.(1,2) | D.(2,3) |
1 | ||||
log
|
1 | ||||
log
|
1 |
log2-13-1 |
1 |
log5-13-1 |
1 |
log23 |
1 |
log53 |
lg2 |
lg3 |
lg5 |
lg3 |
lg2+lg5 |
lg3 |
1 |
lg3 |
A.0<a<b | B.0<b<a | C.0<b<a<1 | D.0<a<b或a>1 |
1 |
2 |
A.4 | B.
| C.2 | D.0 |
A.0 | B.1 | C.2 | D.4 |
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