This is an app that allows you to learn the past questions of the boiler mechanic qualification exam published in April 2023 in a quiz game format.Since the answer explanation is attached, you can learn well.The content is the same as the book "Boiler Mechanic Past Questions and Answers Commentary Collection" sold by our company (one time).Please do your best.We are not responsible for any damage caused by viewing this app.
ボイラー整備士 2023年4月
