Birth rates decline, and mortality of young and adults increases when the population approaches______.
举一反三
- The world’s birth rates are on a decline and____are the death rates.
- The world’s birth rates are on a decline and____are the death rates. A: the same B: too C: so D: also
- ___________________ refers to a rapid increase in the size of a population caused by such factors as a sudden decline in infant mortality or an increase in life expectancy. It particularly means the very great and continuing increase in human population in modern times. Optimal population size appears adequate for economy, education, healthcare, and environment.
- When bond interest rates become less volatile, the demand for bonds _________ and the interest rate _________. A: increases; rises B: increases; falls C: decreases; falls D: decreases; rises
- In London, the mortality rate is higher than the birth rate.