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    What makes people happier, money or having happy friends and neighbors? Scientists have found an
 answer as part of a study.
     The new study found that friends of happy people had a greater chance of being happy themselves.
 And the smaller the distance between friends, the larger the effect they had on each other's happiness (幸
 福).
     For example, a person was 20% more likely to feel happy if a friend living within one and a half
 kilometers was also happy. Having a happy neighbor who lived next door increased a chance of being
 happy by 34%. The effects (影響) of friends' happiness lasted for up to a year.
     The scientists found sadness (悲傷) also spread (傳播) among friends, but not as much as happiness.
 People take three degrees out of separation (間隔) still had an effect on a person's happiness. Three
 degrees of separation means the friend of a friend of a friend  .
     The study showed that having an extra five thousand dollars increased a person's chances of becoming
  happier by about 2%. But the scientists found that the influence of a friend of a friend of a friend  can be
  greater than that.
     Another finding is that people who are married or work together do not have as much of an effect on
 happiness as friends do.
1. Your happiness has an effect on _____ if Mike is Mary's friend, Mary is Jenny's friend, Bob is Lucy's
    friend and you are Bob's friend.
    A. Mike      
    B. Mary          
    C. Lucy              
    D. Jenny
2. Which of the following has the least effect on happiness according to this article?
    A. Money.    
    B. Workmates.    
    C. Happy friends.    
    D. Neighbors.
3. From this article we know _____.
    A. who's the happiest            
    B. what's happiness
    C. what makes people happier      
    D. when people are happy

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