Those naughty boys were caught ______ in the river again.

A．It uses the science of nutrition to construct diets in health and disease.
B．It uses the science of nutrition to select foods.
C．It uses the science of nutrition to create diets only for patients:
D．It uses the science of nutrition to prepare foods.

A．Dietitians work in hospitals for a longer time than in the community.
B．British dietitians have wide choices for their work.
C．The dietitians in the community care more about the health research than health education.
D．The dietitians just work together with the healthy people.