Solution: Because x∈Z is not emphasized in both sets A and B, it cannot be considered that A = {3 3,4,5,6 6} B = {2 2,3,4,5,6,7,8,9}.
When drawing a number axis, you only need to draw A and B on the same number axis. Pay attention to draw a solid circle with equal size and a hollow circle with unequal size when drawing the end point.
It can be directly calculated from CR(A∩B)={x x≤2 or x≥ 10} on the number axis.
CR(A∪B)= { x x & lt； 3 or x≥7}
(CRA)∩B = { x ^ 2 & lt； X<3 or 7 ≤ x
A ∨( CRB)= {x x≤2 or 3 ≤ X.