difference appraisal的用法和样例：
例句
- It is an advanced subject in the studies on FRD to develop the indicator system of the county-level region forest resources difference and its comprehensive assessment method.
县级区域森林资源差异性评价指标体系和综合评价方法，是森林资源差异性研究的前沿课题。 - The formation appraisal concept emphasis is a system which can encourage students' study interest and improve the self-learning ability.
着重论述了形成性评价是一套能激发学生的学习兴趣和发展学生自主学习能力的体系。
