A total of ***22 items were investigated, namely: 1, set2. Function concept and basic elementary function I (exponential function, logarithmic function, power function); 3. Preliminary solid geometry; 4. Preliminary plane analytic geometry; 5. The algorithm is preliminary; 6. statistics; 7. Probability; 8. Number of basic primary schools 2-triangular number; 9. Plane vector; 10, trigonometric identity transformation; 1 1, triangle solution; 12, sequence; 13, inequality; 14, a common logical phrase; 15, conic curve and equation; 16, (space vector) and solid geometry; 17, derivative and its application; 18, reasoning and proof; 19, the expansion of number system and the citation of complex numbers; 20, (counting principle), 2 1, probability statistics (the content in brackets is the content of science mathematics examination, liberal arts is not tested, and other contents are both arts and sciences). 22. Selected test content: coordinate system and parameter equation, inequality.