Before Lyubomirsky carried out her own research, scientists investigated happiness mainly through ______.
举一反三
- Because little research had been done on the explanation of happiness, before going into the lab, Lyubomirsky had done some ______.
- Dr. Lyubomirsky mainly studies the causes of ______. A: happiness B: bad behavior C: insomnia
- Lyubomirsky designed a Subjective Happiness Scale because she believed it was each person’s ______ that can faithfully record their own happiness.
- They worked together and so______the task in a month. A: carried out B: carried through C: carried on D: carried off
- The way research is carried out in universities has changed as a result of globalization.