Did material and technological advances make Americans happier according to the survey?
举一反三
- In colonial America, where did silversmiths usually obtain the material to make silver articles?
- How many hours on average do Americans read a week according the survey? A: 10.7 hours. B: 4.1 hours. C: 3.1 hours. D: 5.35 hours.
- 1.6Which can be observed from this point of view according to the interpreting of "key" ? A: Functional materials has a very important role in all technological development B: Certain functional materials are the starting point for veritabel technological routes C: The impact of developing the basic material is considerable D: The resultant technological route causes upheaval throughout the technical system
- Which of the following is NOT a common expression? A: to conduct a survey B: to carry out a survey C: to do a survey D: to make a survey
- Are there many workers in a modern technological society according to the author?