How many people living in first-world countries are required to wake up two hours before their circadian clocks?
A: 79%.
B: 69%.
C: 1/3.
D: 1/4.
A: 79%.
B: 69%.
C: 1/3.
D: 1/4.
举一反三
- How many people were injured in the first explosion A: 3. B: 9. C: 4. D: 5.
- How many people in the world are speaking English as their first language?( ) A: 300 million B: 1.5 billion C: 360 million D: 1 billion
- How many people in the world are speaking English as their first language?
- According to the passage, it has long been believed that ______. A: people in poor countries scarcely know how to enjoy a high standard of living B: the world's resources being limited, the people in underdeveloped countries are bound to live a poor life C: most Americans know that the world's resources of many kinds are becoming scarce D: it is impossible for all the people in the world to improve their living standards
- 3. How many hours a month do you _________ to English learning? 4. If insurance guidelines ________ people to take greater safety measures, all of society benefits.