According to a new research, soft drinks have been tied ______ increases in risk factors for colon cancer, such as obesity and diabetes, but there had been little direct research on the subject.
举一反三
- New research in geophysics disproved __________ had been a universally accepted truth.
- Because little research had been done on the explanation of happiness, before going into the lab, Lyubomirsky had done some ______.
- Driving has long been thought of as ( efficient ) ________ than flying, but according to new research, that is no longer the case.
- Many a young scientist ________ engaged in the research work. A: have B: has C: have been D: has been
- They had to put an end to the research because the results from precious tests had not been hardly reliable.