单项选择题

An "internal computer" ( ParA 2 ) is（）.

A. a computer used exclusively by one company for its own problems
B. a person ’ s store of knowledge and the ability to process it
C. the most up to date in home computer a company can buy
D. a computer from the post-war era which is very reliable

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单项选择题If they built a Channel tunnel, you would（）.

A．neither take a train nor go by car
B．only take a train
C．either take a train or go by car
D．only take a bus

单项选择题It can be inferred from the text that（）.

A．Lincoln prepared his speech very carefully before he went to Gettysburg
B．Lincoln was very busy at the time and didn’ t have much time to prepare his speech
C．Lincoln’ s speech was full of rich words
D．Lincoln’ s speech was very long