I am from the northeast, and I have graduated from university (normal school). I didn't go to school all winter vacation and I was in poor health. I also came across this website by accident. I used it all the time when I was in the third year of high school, so I can't say that the effect is not good, because I finally got into the unified recruitment, but I personally think it is effective if there is no foundation. He can give you a systematic learning process, but it takes very little time, so I don't want to waste money. I think you should be a very rational child, so you should rely on yourself. Isn't there a teacher ~ reading books ~ doing special topics ~ just find one or two workbooks, keep doing them, and don't leave questions. Workbooks can be recommended by teachers ~!

Finally, good luck ~! get good results