A:光照射甲烷与氯气的混合气体
B:乙烯通入溴水中
C:在镍做催化剂的条件下,乙烯与氢气反应
D:盐酸与氢氧化钠反应
已知:正比例函数y=k1x的图象与反比例函数y=k2x(x>0)的图象交于点M(a,1),MN⊥x轴于点N(如图),若△OMN的面积等于2,则( )
把下面的图片与所给的描述对号入座。A B C D E____ He is of medium height and build, with two small eyes. He is a pop singer. And he likes playing basketball very much. He is very popular with young people.____ He is short and of medium build. He has short black hair. He is a funny actor.____ She is heavy. She has short brown hair. She always wears glasses. She sings very well.____ He is very tall and has short black hair. He is a basketball player, and he plays it very well. Now he is a college student in Shanghai Jiaotong University.____ She is thin, with long black hair and big eyes. She is a movie star. She is in the play "Palace", and she is very popular with young people.
①世界多极化格局已经形成 ②各国间的共同利益是达成共识的基础
③我国在国际事务中发挥着重要建设性作用 ④促进共同发展是我国外交政策的基本准则
图1是中国人民银行于2015年2月发行的生肖纪念币,该生肖(属相)动物与人类生活的关系非常密切。下列历史文物中着力体现该动物形象的是( )