在电磁辐射中，电场和磁场在行进中? <br/> In electromagnetic radiation, electrical and magnetic fields travel at? <br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/dde6590776d42e4f3398e7a500f385e0.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/888fe7c8d1d120aa70e5b37c0fe8167d.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/046e215bb0711efaee922ef1de168f12.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/25d495d42660a38c052c2ea67c46b50b.jpg"/>