Q11:
If s is the product of the integers from100 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答案是d
不太懂是什么意思,是用t来表示整个式子???
希望有人能帮忙解答一下这种类似的题作者: xingzixin 时间: 2010-6-1 06:33