Have all those who applied for the State Grid passed the examination taken the tutoring class?

You definitely can’t say that. It can only be said to be part of it. Whether you sign up for a class or not depends on each person. If you review by yourself, it’s fine. Naturally, there is no need to sign up. Of course, there are advantages to enrolling in a class. With a teacher to guide you and so many classmates, the overall environment will definitely be better. Some of the more reliable tutoring classes in the State Grid Network include Hongpai and Vivi. You can ask about them. . .