A．They keep people sitting long hours watching TV.
B．They have gradually changed people' s way of life.
C．People are drawn to their attractive package.
D．They popularize birth control measures.

A．The increase in birth rate will promote consumption.
B．The desire for consumption helps to reduce birth control.
C．Consumption pattern and reproduction pattern are contradictory.
D．A country' s production is limited by its population growth.

A．To learn how to face death.
B．To attend to patients.
C．To visit dying patients.
D．To have access to a hospital.