题目

           that Tom rushed out to find out who was at the door.        A．So strangely did he feel                        B．So strangely he felt        C．So strange did he feel                           D．So strange he felt   答案：C下列应用没有利用电磁波技术的是（ ）A．无线电广播 B．移动电话 C．雷达 D．白炽灯