關於「GL assessment NGRT levels」標籤，搜尋引擎有相關的訊息討論：

Choosing a test type and level - GL Supportsupport.gl-education.com › ngrt-support › before-the-testTest level age guide - Support - GL Assessmentsupport.gl-assessment.co.uk › guides › packages › packagesTraining and Support - GL Assessmentsupport.gl-assessment.co.uk › guides ›