句子理解 most newspapers rely on the wire sevices for national news根据这句话,下面的题应该选哪个?为什么?the national news is mostly sent to the national editor by all of the following ways except ___________A.by e-mail B.by fax C.by post D.by tepephone可是为什么会选C呢 请讲一下原因

句子理解 most newspapers rely on the wire sevices for national news
根据这句话,下面的题应该选哪个?为什么?
the national news is mostly sent to the national editor by all of the following ways except ___________
A.by e-mail B.by fax C.by post D.by tepephone
可是为什么会选C呢 请讲一下原因