In China, the life expectancy is ( ) years.

The most important reason for the lower life expectancy of men may be that

The average life expectancy rate for women is higher than the rate for men.

3. Life expectancy in India was about 40 years at the end of the century.

The life expectancy of Chinese people is now five years more than international average.

With the_______ of living conditions throughout the world, there has been an increase in the life expectancy of the human race.

Those who are satisfied with their lives enjoy better health and longer life expectancy than those who are _____.

Longer life expectancy becomes a daily stress because we should worry about the rising cost of health care and the problem of the uninsured.

In (its) life expectancy, (although) in most (other) things, the Sun is a (typical) star.（） A: its B: although C: other D: typical

With the improvement of living conditions throughout the world, there has been an increase in the life ________ of the human. A: expectancy B: expectation C: exception D: excursion