1 |
2 |
A.(0,1) | B.(1,2) | C.(2,3) | D.(3,4) |
1 |
2 |
7 |
2 |
A.-1<a<1 | B.a<-1或a>1 | C.1<a<
| D.-
|
A.(-3,-2) | B.(-2,0) | C.(2,3) | D.(0,1) |
|
A.∃a∈R,f(x)有最大值f(a) |
B.∃a∈R,f(x)有最小值f(0) |
C.∀a∈R,f(x)有唯一零点 |
D.∀a∈R,f(x)有极大值和极小值 |
A.(-1,0) | B.(1,2) | C.(
| D.(1,e) |
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