A:When the ground shakes suddenly.
B:When the ground stops shaking.
C:Don't leave the building.
下列说法正确的是( )
x
0
1
3
4
y
2.2
4.3
4.8
6.7
若x,y具有线性相关关系,且 y^ = b^ x+2.6,则下列四个结论错误的是( )
下列关于乙酸的说法中不正确的是( )