鼻腔对吸入的气体肴温暖的作用,主要是因为鼻腔内( )
A:有鼻毛
B:内表面有粘膜,能分泌粘液
C:有咽
D:粘膜内分布着丰富的毛细血管
Either Eve or Herb ___________ been invited by Lucy's parents already.