单项选择题
A．To train doctors and nurses. B．To recruit volunteers. C．To equip hospitals with advanced facilities. D．To do drills in preparation for emergencies.
A．Self-esteem matters a lot when one works in a company. B．Self-esteem enables people to confront someone superior. C．Self-esteem is built up on a support system. D．Self-esteem plays a bigger role for the self-employed.