A．Governments may face difficulties in fighting diseases.
B．Fewer doctors and nurses like to go to these places.
C．More local doctors are required to work abroad.
D．The number of local population decreases sharply.

A．Health care crisis can't be solved in a short time.
B．More people are dying from preventable diseases.
C．Health care crisis is most severe in Southern Asia.
D．Poor countries have poor ability in providing vital services.

A．They can't train many medical care experts.
B．Medical workers are attracted to richer places.
C．They don't have favorable policies.
D．Their government doesn't care much about that.