Q10: A set of numbers has the property that for any number t in the set, t + 2 is in the set. If –1 is in the set, which of the following must also be in the set?
I. -3 II. 1 III. 5
A. I only B. II only C. I and II only D. II and III only E. I, II, and III
此题的解答是(D)可是小弟个人粗浅的看法是答案(C),我在怎样看都觉得 -3比 5来的更加肯定在set之內,请各位大大帮我之点一下好吗!
t在数列里,则t+2在这个数列里
已知-1在,-1在则1在,1在则3在,3在则5在
但是-1在并不能说明-3在
因为题目没说如果t+2在数列里,则t一定在数列里
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) | Powered by Discuz! 7.2 |