1, CUHK online school, the learning time limit is 180 days (at the end of the exam). If you fail in the exam, you are guaranteed to study again for free for a period of time. Learning form: video class+practice mode, with high price under the same course and service;
2, 233 online school, learning time limit 180 days (the end of the exam), there is a guarantee of free re-learning if you fail the first exam; There are a lot of free exercises on the website that can be done for free, which makes you feel more public and self-taught.
3, Gao Dun online school, video+practice mode, no guarantee to re-learn, no highlights;
4. Global online school, valid for 2 years, does not guarantee to resume school;
5. Le Kao. The training is valid for 2 years. If you fail in the exam, you can choose the guarantee of free repetition or refund. The form of the course is to strengthen the test center, broadcast secret training, simulate the whole truth, and focus on pre-test betting. The model that both mobile phones and computers can learn is quite good, and you can review it anytime and anywhere. Guaranteed service and convenient learning methods attracted me and many friends to join in the study, and all 7 people passed the exam!