单项选择题

What is the best title for this passage

A．Six Stages for Repairing Sam's Bicycle.
B．Possible Ways to Problem-solving.
C．Necessities of Problem Analysis.
D．Suggestions for Analyzing a Problem.

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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

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