difference appraisal的用法和樣例：
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.
縣級區域森林資源差異性評價指標體系和綜合評價方法，是森林資源差異性研究的前沿課題。 - The formation appraisal concept emphasis is a system which can encourage students' study interest and improve the self-learning ability.
著重論述了形成性評價是一套能激發學生的學習興趣和發展學生自主學習能力的體系。
