Does the subject want to ask, "What is the grading standard of Hainan junior high school students' local examination? "According to the grades of middle school students. Official website of Hainan Education Bureau shows that the candidates are a whole sample, and the scores are sorted from high to low. The first 30% is Grade A, 30%~65% is Grade B, 65%~90% is Grade C, and finally 10% is Grade D..