19:T4ec,1. App introduction - Includes explanation, selection, and picture questions that require memorization among the questions on the firefighting equipment engineer (mechanical) practical exam. - In addition to memorization, solve calculation problems with the help of the app and use it for summary before the exam. - Contains issues from 2013 to the most recent episodes - Suitable for learning while on the move or during downtime - Lightweight app, no internet usage, no ads, no in-app purchases - Continuous updates of the latest episodes with a one-time purchase 2. Features - Learn by arranging problems by topic or year of exam - Provides various learning methods such as inserting keyword parentheses, learning acronyms, learning to view each paragraph, etc. - Use the wish function to focus on learning problems that users have wished for - Learn to listen repeatedly until you get used to it with the TTS function - Easy and quick memorization by using various functions in combination - New exam questions will be continuously updated - New! Formula practice: Memorize 115 major formulas (79 include calculation functions) - Click and hold the question mark button for 2-3 seconds to see how to use it. - Visit http://www.usefulpen.com to learn more.1a:T51f,1. App introduction
- Includes explanation, selection, and picture questions that require memorization among the questions on the firefighting equipment engineer (mechanical) practical exam.
- In addition to memorization, solve calculation problems with the help of the app and use it for summary before the exam.
- Contains issues from 2013 to the most recent episodes
- Suitable for learning while on the move or during downtime
- Lightweight app, no internet usage, no ads, no in-app purchases
- Continuous updates of the latest episodes with a one-time purchase

2. Features
- Learn by arranging problems by topic or year of exam
- Provides various learning methods such as inserting keyword parentheses, learning acronyms, learning to view each paragraph, etc.
- Use the wish function to focus on learning problems that users have wished for
- Learn to listen repeatedly until you get used to it with the TTS function
- Easy and quick memorization by using various functions in combination
- New exam questions will be continuously updated
- New! Formula practice: Memorize 115 major formulas (79 include calculation functions)
- Click and hold the question mark button for 2-3 seconds to see how to use it.
- Visit http://www.usefulpen.com to learn more.