黄帝垂衣裳而天下治,传下来的大襟右衽、交领、宽袍大袖、博衣大带的这种服饰,延续于夏、商、周,直至元、明,并影响了日本、朝鲜等国。对此较全面的认识是( )
在较暗的室内,把一支点燃的蜡烛放在一块半透明的塑料薄膜前,在它们之间放一块中间钻有小孔的不透明的报纸,则会在塑料薄膜出现 ( )
宋代都市的文化生活丰富多彩,城内一般都设有多处供居民娱乐的场所——瓦舍。瓦舍出现的原因是( )
①城镇规模的扩大和城市的繁荣 ②城乡经济的发展和商业的繁荣
③市民阶层的不断扩大 ④经济重心南移
在研究电流跟电压、电阻的关系实验中,当研究电流与电阻的关系时( )
Sarah is from France. She lives in Paris. She can speak French and English, but she can't speak Chinese. She has a pen pal in the United States. Her name is Jane and she lives in New York. Sarah's favorite sport is basketball and she can play the guitar, too. Jane's favorite sport is tennis. She can't play the guitar, but she can play the piano and sing.