A:that; that; possible
B:which; that; impossible
C:which; what; possible
D:what; which; possible
钟表上2时15分,时针与分针的夹角是( )
若集合A=x∈Z|2<2x+2≤8,B=x∈R|x2-2x>0,则A∩CRB所含的元素个数为( )