潜水士 2021年4月

It is an application that allows you to learn the past problems of the diver qualification test announced in April 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.