Ultrasound diagnostic technology has been applied in obstetrics for
more than 50 years.(
)
more than 50 years.(
)
举一反三
- Professor Chen has been on his ____（retire）for more than five years.
- Much more money has been earned in the past two years than .
- The<br/>Double-Ninth Festival falls on the ninth day of the ninth lunar<br/>month and has a history of more than 1,700 years. it is also the<br/>Senior Citizens’ Day. ()
- Why is technology considered "invasive"? () A: Technology<br/>is an integral part of our personal, as well as our professional<br/>lives. B: Technology<br/>has destroyed many values of society. C: It<br/>has forced certain businesses to shut down for good. D: Technology<br/>requires that employees work more than 40 hours per week.
- Questions 7 to 10 are based on the following conversation. How long has it been since the man played basketball A: Less than 25 years. B: B. Less than 5 years. C: More than 5 years. D: More than 25 years.