Features 危険物丙種問題集
The definitive edition of the Dangerous Goods Class C problem collection and the Class C countermeasures app!
240 questions carefully selected to the production format.With detailed explanations for all problems.This application "Hazardous material class problem collection" is free.
You can use all functions and all problems for free.Install this free app now if you want to take dangerous goods!
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Personalization
Customize the app to match your preferences and workflow.
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Available for Android 8.0 and above