A:芳林侧畔催陈叶,流水前波让后波
B:宝剑锋从磨砺出,梅花香自苦寒来
C:卧看满天云不动,不知云与我俱动
D:知屋漏者在宇下,知政失者在草野
It was a real race time to get the project done.Luckiky,we made it.
二次函数y=ax2+bx+c的图象如图所示,则下列关系式中错误的是( )
汽车刹车做匀减速直线运动,那么,它的( )