Multiple choice questions, 60, but relatively very complicated, so control within 30 minutes;
Multiple choice questions, 40 questions, with certain difficulty and high score, it is recommended to give 40 minutes;
Discrimination, 20 questions, is the most complicated problem. Choose either A or B. If you want to choose after reading it, give 5- 10 minutes.
Comprehensive questions, 20 questions, basically all need 20 minutes to calculate and control. 786