单项选择题

As used in the last sentence, the phrase "in short" means_____.

A．in the long run
B．in detail
C．in a word
D．in the end
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单项选择题
From paragraph 4, we can deduce that_____.
A．the speed of computers is faster than ever
B．scientists encounter unprecedented difficulties
C．the intelligence of computers is more important than the speed
D．there is much room for the improvement of computer intelligence
单项选择题
The author's attitude towards intelligent seem to be that_____.
A．opposition
B．approval
C．suspicion
D．indifference
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