x2+x-12 |
x2-5x+7 |
A.A | B.B |
C.{x|2≤x<3} | D.{x|2≤x<3或x=-3} |
x2+x-12 |
x2-5x+7 |
(x-3)(x+4) |
x2-5x+7 |
A.{-1,2} | B.{-1,3} | C.{0,1} | D.{2,3} |
A.{1} | B.{0,2,3} | C.{1,2} | D.{2,3} |
log2(x-1) |
1 |
2 |
A.{1,3,4,5,7,8,9} | B.{1,4,8,9} |
C.{3,5,7} | D.{3,5,7,8} |
© 2017-2019 超级试练试题库,All Rights Reserved.