gwd1-10

meng03 · 发表于 2011-12-1 11:16:52

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

答案是不是错了啊

bsbloving · 发表于 2011-12-1 11:19:06

答案好像是D吧? -1在,1就在,3就在,5就在... 但-3不一定在啊..不能反推

civianzheng · 发表于 2012-1-16 15:20:58

为什么不能反推呢？

gwd1-10

所属分类: GMAT考试

正在浏览此版块的会员 ()

浏览过的版块