类testl定义如下:
1. public class test1
2. public float amethod(float a,float b)
3.
4.

A．public foat amethod(float a,float b,foat c)

B．public float amethod(float c,float d)

C．public int amethod(int a,int b)

D．private float amethod(int a,int b,int c)