This is an app that allows you to learn the past questions of the first-class boiler engineer qualification exam published in October 2022 in a quiz game format.
Since the answer explanation is attached, you can learn well.
The content is the same as the book "First-class boiler engineer 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.
Since the answer explanation is attached, you can learn well.
The content is the same as the book "First-class boiler engineer 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.
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