I don't think this point is mandatory, but it is definitely necessary if you want to do it for a long time. If the online test is completed in the early stage of training, you can try it in the novice stage. If you want to continue to do it later, you must train. After all, you are a big brother, and your business is more professional. Besides, training will definitely help our business. Our rider exchange group has reached a lot recently. You can try it first.