A:①②③
B:②③④
C:①③④
D:①②④
There any books on the desk yesterday.
将过量的NaOH溶液与H2SO4溶液充分混合后,在混合溶液中滴入酚酞试液会显( )
将抛物线y=(x+2)2-3的图像向上平移5个单位,得到函数解析式为____ .