A:π2
B:π
C:2π
D:4π
—May I come in?
—Yes, come in. But _______ again.
已知全集U=R,A=x|12<2x<4,B={x|log3x≤2}.
(Ⅰ)求A∩B;
(Ⅱ)求∁U(A∪B).