2. 外语
  3. Choose TWO letters, A-E. Which TWO things are true about the participants in the study on the traffic-light system? A They had l

Choose TWO letters, A-E. Which TWO things are true about the participants in the study on the traffic-light system? A They had l

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问题 Choose TWO letters, A-E.
Which TWO things are true about the participants in the study on the traffic-light system?
A They had low literacy levels.
B They were regular consumers of packaged food.
C They were selected randomly.
D They were from all socio-economic groups.
E They were interviewed face-to-face.
选项 A、 
B、 
C、 
D、 
E、 
答案E
解析
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