1 |
2 |
A.R | B.[8,+∞) | C.(-∞,-3] | D.[3,+∞) |
1 |
2 |
1 |
2 |
1 |
2 |
1 | ||
|
A.{x|x≤1} | B.{x|0<x≤1} | C.{x|0<x<1} | D.{x|0≤x≤1} |
A.y=x2+x+1 | B.y=2x-1 | C.y=(x+1)
| D.y=|log2x| |
A.a>c>b | B.c>a>b | C.b>c>a | D.c>b>a |
x2 | ||
|
A.(0,2) | B.(1,2) | C.(2,+∞) | D.(-∞,1) |
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