构成细胞表面的成分()。
A. 葡萄糖
B. 核糖
C. 脱氧核糖
D. 糖原
E. 糖脂
根据录音,选择合适的答案() 查看材料
A. She won"t have dinner until finishing the report.
B. She is too busy to have dinner with them.
C. She doesn"t want to have dinner tonight.
D. She won"t finish the report until tomorrow.
根据录音,选择合适的答案() 查看材料
A. She forgets what they have done.
B. She has been sick.
C. She will help the man.
D. She missed some classes.
皮影戏(shadow play)是中国古老的民间传统艺术。据史书记载,它始于汉代,盛于唐宋。皮影(shadow puppet)最初由纸制成,后来改由驴皮或牛皮制作,因此而得名。皮影在中国乃至世界上都具有很高的艺术价值,被世界多国博物馆收藏。人们认为陕西的皮影戏最具代表性,西安的书院门文化街(Academy Gate Cultural Street)是购买皮影作为纪念品的绝佳之地。