我在概念上有些不太明白这些题,可否有牛牛给解答一下.感激万分!! Q11: If s is the product of the integers from 100 to 200, inclusive, and t is the product of the integers from 100 to 201, inclusive, what is 1/s + 1/t in terms of t? A. (201)2/t B. [(202)(201)]/t C. 201/t D. 202/t E. [(202)(201)]/t2 |