By describing a typical situation of a lost driver on the road, the author intend to ______. The navigation computers have one

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问题 By describing a typical situation of a lost driver on the road, the author intend to ______.
The navigation computers have one thing in common: they all ______.

选项 A、contain series of maps on videodiscs or videotapes
B、contain 13,300 maps covering the continental US
C、can be obtained free of charge
D、cost a lot of money

答案A

解析 借助常识判断C,D不可能是答案。利用“navigation computers”作为答案线索,注意题干中的修饰词"ail",这样在文章中找到答案相关句:These computers vary in details.But they all contains genes of maps on Vediodiscs or videotapes.For example,one computer system contains 13,300 maps covenng the continental US.
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