Eight cities in Hubei province, 20 1 1, grade three, March, turn to science mathematics answer.
20 1 1 Reference Answers and Grading Criteria of Science Mathematics for the March Entrance Examination of Eight Cities in Hubei Province 1. Multiple-choice question (5 points × 10=50 points) No.65438 +0 2 3 4 5 6 7 8 9 10 Answer ABB D C C C C A D II. Fill in the blanks (5 points× 5 = 25 points)1.3+i. Kloc-0/5 problem solving (75 points, the answers are for reference only, and other solutions are given as appropriate)/kloc-0 16.666666666666 is simplified to ① (2 points) ∴ ② (4 points) simultaneous to ② (6 points) (2 points) Topic setting: ∴ (9 points) ∴ ∫ 0 [1-(x1+) (12 points) According to the inequality (*): ∴ (14 points) Proposers: Cao Shiwu of Xiantao Education College, Xiantao No.1 Middle School, xiantao middle school Fang, Hu Shengmiao, Shiyan Education College,