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重视高考评卷标准,规范解题理论依据——从三则评卷信息谈起胡如松(湖南双峰二中417701)一、三则评卷信息1.全国高考数学试卷1991年理工农医类中的第24题是:根据函数单调性的定义,证明函数f(x)=-x3+1在(-∞,+∞)上是减函数.本题满分1...
Pay attention to the college entrance examination assessment standard and standardize theoretical basis for problem solving. Discuss Hu Rusong (Hunan Shuangfeng II 417701) 1 and 3 ratings information from three ratings information. The twenty-fourth item in the national college entrance examination mathematics paper in 1991 in the science, engineering, agriculture, and medicine category is: According to the definition of the monotonicity of functions, it is proved that the function f(x)=-x3+1 is a decreasing function on (-∞,+∞). This question out of 1...