问题详情

What must we understand in order to be successful in our training programs？

A．The difference between a job description and a job specification.

B．The difference between what is taught, and how it is used.

C．The relation between the costs and the quality of the program.

D．The difference between learning about the skills and training in using them.

请帮忙给出正确答案和分析，谢谢！