パブロフ危険物乙４類

★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