求教XDF小兰一题

mirandatsui

p128 335
The presidents of a consulting firm analyzed the decisions made about marketing by her clients and concluded that the decisions were correct only about half of the time. The conclusion above depends on the presupposition that__
D marketing decisions are just as likely to be correct as they are to be incorrect
E it is possible to classify a marketing decision properly as being either right or wrong

结论是decisions were correct only about half of the time 我想请问下这句话怎么理解。因为我理解为"决定不是时时正确"但是显然不符合答案。求解答。

（答案为E）

顺便再问下，我从官网下载的PREP只有两套机考。PREP还有其他题目么？

非常感谢~

buffonjuventus

官网下载的prep貌似就两套吧，坛子上的破解不止两套。

-- by 会员 buffonjuventus (2010/11/10 3:40:20)

哦 破解不是只分新旧么

-- by 会员 子夜风衍 (2010/11/11 13:19:10)

我说的官网下载指的是，报名以后，在mba。com上下载的……

子夜风衍

官网下载的prep貌似就两套吧，坛子上的破解不止两套。

-- by 会员 buffonjuventus (2010/11/10 3:40:20)

哦 破解不是只分新旧么

buffonjuventus

官网下载的prep貌似就两套吧，坛子上的破解不止两套。

三零年代

decisions were correct only about half of the time
这些decision只有一半的时候是对的。

那么前提是decision是可以分出对错的。

PREP不止2套，你每次重新进去做，题目会不一样。