1 |
3 |
1 |
3 |
1 |
3 |
1 |
3 |
1 |
2 |
b |
3a |
b |
3a |
1 |
2 |
b |
a |
3 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
b |
a |
b |
3a |
1 |
2 |
b |
a |
3 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
b |
a |
A.0个 | B.1个 | C.2个 | D.无法确定 |
|
1 |
2 |
A.f(x0)=0 | B.f(x0)<0 |
C.f(x0)>0 | D.f(x0)的符号不确定 |
A.0 | B.1 | C.2 | D.不能确定 |
1 |
m |
A.[-
| B.[-
| C.(-∞,-
| D.[1,+∞) |
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