-- Are you going to Jay Zhou's concert in Guangzhou this summer holiday?
-- I'm not sure. It ________ the price of the ticket.
A:depends on
B:cares about
C:agrees to
D:finds out
①供不应求 ②互补品需求量会有所减少
③替代品需求量会有所减少 ④生产规模可能会扩大
文化大革命结束的标志是( )