First of all, Rong's books should also be judged by disciplines. He is good at math and physics, and a little popular in chemistry and biology. I mean the difficulty and novelty of the topic.
Every winter and summer vacation, I always use the middle point of the book as an outline. After reading the new book, I finished reading a middle point of this book. Personally, I think this book is very suitable for middle-level students except for some topics in volumes C and B.
The tutorial series is suitable for you, the topic is not very difficult, and the answers at the end of the book are detailed and rich, suitable for students with weak foundation.
To tell the truth, it is enough to buy a copy of New Instruction, Analysis, Point-in-Point and Point-in-Class Training. Many topics in Rong Bibliography are consecutive, which means that you may find the same topic in four books. As long as you can fully understand all the questions in the point (I mean I can do it myself and know why), your grades will definitely be fine.
Of course, if you want to be top-notch, I have a series of books to recommend to you, but those are somewhat competitive, similar to the titles of the Hope Cup. Please ask me again then ~
I wish you finish writing a little ~