In 2010, about 230 million, or_____of the population aged five years and older, spoke only English at home.
A: 80%
B: 70%
C: 90%
D: 60%
A: 80%
B: 70%
C: 90%
D: 60%
举一反三
- The current rate of annual increase in the world population is about （）. A: 9 million B: 5.7 million C: 90 million D: 20 million
- The percentage of people employed aged 16 years and older divided by the working-age population is known as the A: employment rate. B: employment-to-population ratio. C: labor force participation rate. D: working-age population ratio.
- The number of people aged 60 years and over has tripled since 1950 globally, reaching 600 million in 2000 and surpassing ______ million in 2006. It is projected that the combined senior and geriatric population will reach 2.1 billion by 2050. A: 650 B: 700 C: 750 D: 800
- 急淋白血病的治疗完全缓解率可达（） A: 60%～90% B: 80%～90% C: 60%～80% D: 70%～90% E: 70%～80%
- English is the official language of about 45 nations and the mother tongue of about 60 million people in the British Isles.