This passage chiefly discusses ______.
A: the growth of world population
B: one type of the exponential rate
C: the population problem of more rapidly growing countries
D: the possible ways of dealing with the rapid population growth
A: the growth of world population
B: one type of the exponential rate
C: the population problem of more rapidly growing countries
D: the possible ways of dealing with the rapid population growth
举一反三
- This passage tells us that ______. A: the United Nations thinks it possible to avoid a population explosion B: 5.1 billion people are living in the underdeveloped countries C: in advanced nations the population growth is being controlled D: the world's population is increasing.
- This passage tells us that（） A: the United Nations thinks it possible to avoid a population explosion B: 5.1 billion people are living in the underdeveloped countries C: in advanced nations the population growth is being controlled D: the world's population is increasin
- The population growth rate is the birth rate minus the death rate.()
- Age distribution is the number of individuals of each age in the population which influences greatly the rate of population growth。 （ ）
- The rate of population growth reached a peak in 1999 and declined in ______ years.