请教L2003-10-C-10

sevfye

10. Those who have the ability to fully concentrate are always of above-average intelligence. Also, being successfully trained in speed-reading will usually be accompanied by an increased ability to concetrate.

If the statements above are true, thenk each of the following could be true Except

A) some peple can speed-read, and are able to fully concentrate, but are of below-average intelligence.

B) All people who can speed-read are of above-average intelligence.

正确项A。 为什么A）must be false呢？

第一句里，“....are always of above-...." 并不等于 他们must above, 所以说还是可能有some people who can speedread, but be of below-average.  then,A) is possible. why not?

dphxmg

fully concentrate (fc) -> above-average intelligence (aai) = aai¬ -> fc¬. So aai¬ and fc¬ = 0 (0=false)

A) speed-read and fc¬ and aai¬ = sr * (fc¬*aai¬) = 1*0 = 0

caiwencn2007

因为你打字打错了！哈、哈

噶噶

本来想说点别的，

但是后来发现你是抠字眼了。

这个肯定不是题目要考察你的地方。ARE ALWAYS就相当于陈述真理了感觉……

[此贴子已经被作者于2007-11-29 8:48:49编辑过]

lawyerme

if always doesn't mean must be, what does it mean?

sophyyan

lalala