摘要
It is a puzzle to many researchers that with so extensive resources, so advanced technology, and so urgent need the world over, so little has been done to alleviate the suffering of the people. Why is it so difficult to develop the prevention and health promotion strategies？ This paper tries to discuss the issue.
It is a puzzle to many researchers that with so extensive resources, so advanced technology, and so urgent need the world over, so little has been done to alleviate the suffering of the people. Why is it so difficult to develop the prevention and health promotion strategies？ This paper tries to discuss the issue.
