改革开放以来,我国进入了一个尊重财富、鼓励创造的时代。为让一切创造社会财富的源泉充分涌流,必须( )
①坚持以按劳分配为主体、多种分配方式并存的分配制度
②坚持先富带后富,实现同等富裕
③坚持以公有制为主体、多种所有制经济共同发展的基本经济制度
④健全劳动、资本、技术、管理等生产要素按贡献参与分配的制度
A:②③④
B:①③④
C:①②④
D:①②③
Danny's father is a firefighter. He works at fire station. He's very brave. He h____ short yellow hair. He is tall and thin. His c____ are orange. He likes putting out the f____. Danny's mother is a t____. She works in a school. Her students like her very much. She has a b____ and two dresses. They are purple.
They are nice. She likes playing games with her students. She is a good teacher.
用科学记数法表示0.000210,结果是( )
读一读,填一填一连。
弯弯的____ 金黄的____
雪白的____ 宽宽的____