They issued two special sets of stamps on Jan 8, 2013, __________ the Chinese Lunar Year of the Snake. ( )
A:in favour of
B:in celebration of
C:in terms of
D:in need of
We____ shopping unless it ____ tomorrow.
____,知来者可追。实迷途其未远,____。(陶渊明《归去来兮辞》)
在西欧,“小麦的价格从十六世纪初到世纪中未有上升,而在世纪末却涨到了四倍于世纪中的价格”。出现这一现象的主要原因是( )