★It is compatible with most models sold in Japan, but display problems may occur on some models. I would appreciate it if you could check the display when the download is completed. You can cancel within 15 minutes.
★I made it possible to scroll the question text
With this app, why not get Dangerous Goods Class B 4?
Recommended for those who receive Category Otsu 4 hazardous materials, those who need Category Otsu 4 for work, those who work part-time at gas stations, and those who are science students.
A full range of questions are recorded and explained based on the law of Dangerous Goods Class B 4 and the tendency of questions.
◯ Contains 175 textbooks and problems.
◯ Questions with the same 5 choices as the actual performance.
◯ Detailed explanations and hints are provided for each question.
With this app alone, you can reach the passing level of Dangerous Goods Otsu 4.
Have fun studying Class Otsu 4 with Pavlov!
◯ Textbook mode
◯ Save function
◯ Hint function