If you have time before preparing for the exam, you can brush the test paper of Xueba Group. The difficulty is basically the same as that of the State Grid Examination. At the same time, you can also practice your feeling of doing the problem and control the time of doing it. The most important point! Be sure to return to the textbook, because no matter which institution, the answer to the question is wrong. If you find that the answers in the question bank don't match the corresponding knowledge in the book, focus on the textbook and don't get too entangled.