1 |
2 |
A.[0,1) | B.(2,3] | C.[2,
| D.(2,
|
1 |
2 |
1 |
2 |
5 |
2 |
4 |
|x|+2 |
A.2 | B.5 | C.6 | D.8 |
x(x-1) |
x |
A.{x|x≥0} | B.{x|x≥1} | C.{x|x≥1}∪{0} | D.{x|0≤x≤1} |
logcos
|
A.(-3,+∞) | B.[-2,+∞) | C.(-3,-2) | D.(-∞,-2] |
1 | ||||
|
A.(-
| B.(-
| C.(-
| D.(0,+∞) |
x2-3x+2 |
A.[1,2] | B.(-∞,1]∪[2,+∞) | C.(1,2) | D.(-∞,1)∪(2,+∞) |
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