a |
3 |
b |
a |
b |
π |
12 |
1 |
2 |
π |
4 |
a |
b |
3 |
3 |
π |
6 |
π |
2 |
π |
6 |
3π |
2 |
π |
6 |
2π |
3 |
π |
6 |
2π |
3 |
π |
12 |
π |
12 |
π |
6 |
π |
3 |
1 |
2 |
π |
3 |
π |
4 |
π |
3 |
π |
3 |
5π |
4 |
| ||
2 |
π |
3 |
2 |
π |
4 |
2 |
x-1 |
10-5x |
A.
| B.3 | C.2
| D.
|
|
x-1 |
A.(-∞,1) | B.(-∞,1] | C.(1,+∞) | D.[1,+∞) |
A.[a,b] | B.[a+1,b+1] | C.[a-1,b-1] | D.无法确定 |
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