It is an application that allows you to learn the past problems of the diver qualification test announced in October 2021 in a quiz game format.You can learn well because the answer explanation is attached.The content is the same as the book "Diver Past Questions / Answers Commentary" sold by us (one time).Please do your best.We are not responsible for any damage caused by browsing this app.
潜水士 2021年10月
