Personally, I feel quite complete. Our teacher recommended it. There are standardized and improved articles in the operation questions. It's a pity that I only read the standard article at first, but the exam was given in the improvement article in March this year. . . 20 13 is enough, and it is almost enough to find the questions in March this year online. At that time, it depends on the character of the exam. Some of the operation questions are future and some are not. I haven't seen most of the multiple-choice questions, but I personally think it's not difficult. Oil; Fuel filling; Make greater efforts