According to the passage, what was the percentage of American adults doing regular physical exercises two years ago ( )
A: About 70%.
B: Nearly 60%.
C: Almost 50%.
D: More than 12%.
A: About 70%.
B: Nearly 60%.
C: Almost 50%.
D: More than 12%.
举一反三
- More than two ______ years ago, people knew little about the universe.
- According to the author, ______ . A: older adults need more physical exercises than the younger ones B: younger adults are not necessary to take a physical examination before a fitness program C: fitness programs for older adults should be well - monitored D: poorly-designed fitness programs for older adults will do serious harms to them
- More than two ______ years ago, people knew little about the universe. A: thousands B: thousand C: thousands of D: thousand of
- In fact, it has just a history of （）. A: less than two hundred years B: more than a hundred years C: less than a century D: nearly a century
- The American colonies won their (depend)___________more than two hundred years ago.