A:if cooling
B:though to be cooled
C:when cooled
D:when is cooled
下列“不一定”的说法中,不正确的是( )
已知全集U=R,A=x|12<2x<4,B={x|log3x≤2}.
(Ⅰ)求A∩B;
(Ⅱ)求∁U(A∪B).