2. 外语
  3. A、How primitive people used flags. B、What the ancient means of communication was. C、Why the torch towers were built. D、How the G

A、How primitive people used flags. B、What the ancient means of communication was. C、Why the torch towers were built. D、How the G

admin2009-08-19  66
问题  
选项 A、How primitive people used flags.
B、What the ancient means of communication was.
C、Why the torch towers were built.
D、How the Great Wall came into being.
答案B
解析 M: People first sent signals by flags, some archaeologists observed.
W: No. I think they exchanged news by smoke, hence the torch towers on the Great Wall.
Q: What are they discussing?
综合推断题。男士说考古学家发现人们最早是通过旗帜来发送信号，而女士则认为人们最早是用烟作为信号，并以长城的烽火台为例，由此可知，B正确。hence一般用作副同，有以下含义：①从现在起，如：a day hence从现在起一天后。②因此，如：It’s hand-made and hence expensive. 这是手工制作的，因此很贵。
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