Metadata
Author: UN-2
Data
English[en]
At each level, trainees are required to pass an exam in order to obtain a certificate.
French[fr]
À chaque niveau, les stagiaires sont tenus de passer un examen afin d’obtenir un certificat.
Chinese[zh]
在每一级,都要求学员通过一门考试,才能获得证书。