2. If there are too many people in the civil service training class, it is definitely not good, but too few people can't stimulate the students' learning mind, so the number can't be too much but not too little, so that everyone can have more atmosphere when they study together.

3. For example, the number of Chinese public education remedial classes is well controlled, and there will not be so many people in large classes together like many other institutions, and there will not be small classes with very few people, so you can study hard.