The basic courses of 1 and Peanut XIII are richer in content, including basic knowledge explanation, actual combat drills, project practice and other teaching methods. Listening speed calculation is suitable for people with a certain foundation, mainly focusing on the knowledge content of mathematical speed calculation.

2. Basic classes can improve students' personal ability and problem-solving ability through a lot of exercises, and the improvement effect is good. The improvement of listening and quick calculation requires a certain foundation.