and since the 1940s it has been annoying.

　　We also know the bug as a flaw in a computer program or other design. That meaning dates back to the time of Thomas Edison. In 1878 he explained bugs as

　　“little problems and difficulties” that required months of study and labor to overcome in developing a successful product. In 1889 it was recorded that Edison “had been up the two previous nights discovering ‘a bug’ in his invented record player.”

　　5．We learn from Paragraph 1 that

　　________.

　　A. Americans had difficulty in learning to use the word bug

　　B. George Washington was the first person to call an insect

　　a bug

　　C. the word bug was still popularly used in England in the

　　nineteenth century

　　D. both Englishmen and Americans used the word bug in

　　the eighteenth century

　　6．What does the word “flaw” in the last paragraph probably mean?

　　A. Explanation. B. Finding.

　　C. Origin.

　　D. Fault.

　　7．The passage is mainly concerned with

　　________.

　　A. the misunderstanding of the word bug

　　B. the development of the word bug

　　C. the public views of the word bug

　　D. the special characteristics of the word bug

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