A:偶函数,在(0,+∞)是增函数
B:奇函数,在(0,+∞)是增函数
C:偶函数,在(0,+∞)是减函数
D:奇函数,在(0,+∞)是减函数
从广播电台发射出去的电磁波是( )
Listen the firemen.
________ toothache, the old man felt very bitter, having no good sleep.