1 |
x |
1 |
3 |
A.(
| B.(
| ||||||||
C.(-∞,-
| D.(-∞,-
|
1 |
2 |
1 |
2 |
1 |
3 |
1 |
2 |
A.{1,4,5,6} | B.{4} | C.{1,5} | D.{1,2,3,4,5} |
x+1 |
A.{y|-1≤y<3} | B.R | C.{y|0≤y<3} | D.{y|0<y<3} |
A.0 | B.3 | C.4 | D.3或4 |
A.{1,2,3,4} | B.∅ | C.{2,3} | D.{1,4} |
A.{x∈N* 题型:x|<4} | B.{x∈N*|x<6} | C.{x∈N*|x2≤16} | D.{x∈N*|1≤x≤4} |
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