下图中,正确反映我国城郊农业变化趋势的是( )
A:A
B:B
C:C
D:D
已知集合A={2,﹣1},集合B={m2﹣m,﹣1},且A=B,则实数m等于( )
Shanghai Disney Park will be opened on June 16"'. But the tickets for the first day have sold out.