the average life for Americans
举一反三
- The average life ________ for Americans is now more than 74 years because of their more active lifestyles and good medical care for senior citizens.
- the average life
- On average, Americans have more bathrooms than____people in the world.
- Among humans, the effects of aging vary from one individual to another. The average life ______ for Americans is around 75 years, almost twice what it was in the early 1900s. A: spectrum B: expectation C: expectancy D: width
- The average life-span of Americans is 80 years. （） A: Right B: Wrong C: Not mentioned