2 |
1+x |
A.x轴对称 | B.y轴对称 |
C.原点对称 | D.直线y=x对称 |
2 |
1+x |
1-x |
1+x |
1-x |
1+x |
1+x |
1-x |
1-x |
1+x |
2 |
1+x |
2 |
1+x |
A.[-2,1] | B.[-1,1] | C.[
| D.[
|
3 |
2 |
1 | ||
|
1-x |
1+x |
1 |
2012 |
1 |
2012 |
1 |
2 |
A.(-3,-1) | B.(-∞,-1) | C.(-∞,-3) | D.(-1,+∞) |
lg5•lg8000+(lg2
| ||||
lg600-
|
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