题目内容

14. Some needs are absolute but how much is enough to satisfy the needs may be relative.

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15. A person’s basic needs for a minimally decent life are independent of what others have.

16. Many technological inventions worked their way gradually into people’s lives and became accepted as a necessity.

17.One may suffer a business loss if he makes his customer call repeatedly without the choice of leaving a message on an answering machine.

18. Owning a car in the countryside or a computer in this modern world may not be considered conspicuous consumption.