A:I don’t think so.
B:Why not?
C:Thank you.
D:It doesn’t matter.
A=____B=____C=____D=____
如图所示,小华同学在做“探究凸透镜成像规律”实验时,在光屏上接收到烛焰清晰缩小的像,下列说法正确的是( )