选出恰当的应答语。

  A．There was no computer room．

  B．I looked it up on the Internet．

  C．I went to Mountain Tai．

  D．He tripped and fell in the race．

  E．I went there by plane．

( 1 )____( 2 )____( 3 )____

( 4 )____( 5 )____

小组一围绕“星星之火，可以燎原”提出问题：

下列关于电磁场理论的说法，正确的是（     ）