The study originated in the U.S. in the late 1950s and gained acceptance through training and testing practice in the 1960s and 1970s.
举一反三
- The world's first electronic computer was born in ____. A: 1940s B: 1950s C: 1960s D: 1970s
- The story happened ______. A: in 1960's B: in his 60's C: in 60's D: in the 1960's
- ________ that the trade between the two countries reached its highest point. A) During the 1960’s B) It was in the 1960’s C) That it was in the 1960’s D) It was the 1960’s（B）
- The song "My Generation"illustrates the younger generation's feeling in( ). A: 1950s B: 1980s C: 1970s D: 1960s
- A banker’s acceptance is _________