二次函数y=2(x-2)2+3图象的顶点坐标是______.
∵二次函数的顶点式为y=2(x-2)2+3,
∴其顶点坐标为:(2,3).
故答案为:(2,3).
The payoff on an interest-rate option:()
A. comes some period after option expiration.
B. is periodic, typically every 90 days.
C. is greater than the "strike" rate.
简述检修电解槽极板组和端极板的方法和质量要求。