①叶绿体基质 ②类囊体薄膜 ③线粒体基质 ④线粒体内膜
A:①③
B:②③
C:①④
D:②④
设集合A={x|x2﹣3x+2=0},则满足A∪B={0,1,2}的集合B的个数是( )
2013年8月28日,历时48天的第三届中国儿童戏剧节落下帷幕。本届戏剧节有中国、美国、德国、芬兰、土耳其、阿根廷等7个国家和地区的46部国内外优秀剧目演出216场,使更多的孩子亲近戏剧、享受艺术。这体现出走中国特色社会主义文化发展道路要( )
①坚持“双为”方向和“双百”方针
②贴近实际、贴近生活、贴近群众
③把经济效益放在首位,坚持经济效益和社会效益的统一
④努力满足人民群众的各种文化需求
阅读短文,选出合适的选项。
My grandfather is fifty-five years old. He's a taxi driver. He loves his job very much. It is Sunday. Today is his birthday. My father, my mother and I are in his home. My uncle also comes here. He's a tall man. He's a worker. He comes to see my grandfather every Sunday. My grandfather has a good friend. His name is Jim. He's from England. He's a nice cook. He comes to see him, too. My grandfather is very happy today.