互联网技术的革新使世界进入“人人都有麦克风”的时代。但人人都有“麦克风”,绝不等于人人都可以“乱放风”。“网络谣言”的出现,折射出( )
①文化市场的自发性和传媒的商业性
②大众传媒造成了公众盲从心理
③要满足人民多元化的精神文化需求
④文化的发展需要管理和引导
A:①②
B:②③
C:③④
D:①④
右图是新鲜绿叶的四种光合色素在滤纸上分离的情况,以下说法正确的是( )
细胞增殖包括____ 和细胞分裂整个连续的过程.细胞进行有丝分裂具有周期性,一个细胞周期是指从____ 时开始,到____ 时为止.
sister, doctor, name, old, policeman
A: Hello, Linda.
B: Hello, Lily. Look at the picture of my family.
A: Is your mother a teacher?
B: Oh, no. She is a ____.
A: How ____ is she?
B: 35.
A: Who is the young girl?
B: She is my ____.
A: What's her ____?
B: Her name is Ann. And this man is my father. He is a ____.