辐射能。
参考答案：
辐射就是以各种各样电磁波的形式放射或输送能量，它们的传播速度等于光速，它们透过空间并不需要媒介物质，由辐射传播的能量称为辐射能。
Rosa and Dimitri are the parents of two children.Their daughter Anna is 17 years old and has asked her parents for permission to marry her boyfriend Alexei. Anna’s ext birthday is in 11 months’ time.Their son Peter is 21 years old. He has had numerous personal problems, including convictions for theft. His various ddictions have also led him to steal from his family, causing considerable financial difficulties for them.Required:
(b) Explain the extent to which the provisions of the Civil Code can be invoked by Rosa and Dimitri in order to rotect themselves if Peter’s personal problems continue to affect their situation. (6 marks)
要在命令按钮控件上显示图像应( )。
A)设置Picture属性B)实现不了C)先将Style设置为1，然后再设置Picture属性D)以上都不对
