“胡人汉服、汉人胡食”反映了汉族和少数民族之间相互影响、相互融合,下列哪一项改革凸显了这一现象( )
A:商鞅变法
B:张骞出使西域
C:北魏孝文帝改革
D:文成公主进藏
I. 实验室制备气体,结合以下如图1装置回答问题:
Ann is 1 American worker. She works2a big factory(工厂) in America. It's 3in the morning. Ann 4 up. She is sitting on the bed. She is putting 5her clothes. She 6nothing to do today. Now Ann 7 at the table. She is 8 her breakfast. There is a cup of orange and some bread on the table. Ann is 9 the orange and eating the bread. She is 10today's newspaper.
《今日邵阳·今昔变化》称,唐宋时期,邵阳境内的造纸业、刻书业等手工业生产有一定规模,多种果树开始人工栽培,粮食生产发展到“稻栗再熟”。促进该时期邵阳经济发展的主要原因是( )