20世纪50年代,中国一些农村中流传着一首打油诗:“实行公社化,不分你我他,人都是公家的,一碗稀饭是自己的。”该打油诗反映的是( )
A:优先发展重工业方针的弊端
B:社会主要矛盾发生了转移
C:“大办工业”违背了经济规律
D:经济体制妨碍了生产力发展
ride a bike
fly kites
sleep under a tree
read books
skip
sing a song
play football
Today is Sunday. The weather is fine. The children are playing in the park. Look. Sam and Leo are flying kites.
将二次函数y=x2的图象向下平移一个单位,则平移以后的二次函数的解析式为( )