20 0 1年高考理科数学第 (2 0 )题是一道难题 ,也是一道好题 !说其难 ,是指相当多的学生在考试时面对该题 ,茫然无措 ,一头雾水 .待到考试后查对答案估分时 ,又突然恍然大悟 ,同时追悔莫及 !说其好 ,是指该题综合性强 ,有效融入了排列、组合、二项式定理、不等式等知识 ,深刻地 The 20th year of the 2001 college entrance examination mathematics mathematics (20) question is a difficult problem, it is also a good question! To say that it is difficult means that a considerable number of students are faced with this problem during exams, and they are confused and confused. After checking the score of the test after the test, suddenly suddenly realized that at the same time regret it! Saying it is good, refers to the comprehensive, effective integration of the arrangement, combination, binomial theorem, inequality and other knowledge, profoundly