请问陆旭老师,这道题我在网上找不到,不知道来源,只好贴上。这个CR正确选项D,没有过度推理吗?如果只是大众知道这个鸟有药用价值,不一定引发偷猎吧?C我反而觉得更直接削弱逻辑链:这个鸟住在palm tree上,森林区片化减少了鸟的数量。C:fragmentation 使palm tree 长得更好了,很直接地作用于这个逻辑链啊。我想不通为什么您上课说D更直接?或者您认为削弱题目给出一个他因是一种非常直接的削弱方法,优先于对原文给出原因提出质疑?
What is the median number of employees assigned per project for the projects at Company Z?
1, 25 percent of the projects at Company Z have 4 or more employees assigned to each project.
2,35 percent of the projects at Companny Z have 2 or fewer employees assigned to each project.
GMAT数学(博智教材)第62页:If X is equal to the sum of the even integers from 40 to 60, inclusive, and y is the number of even integers from 40 to 60, inclusive, what is the value of x+y?
X=40+42+44......60=550
Y=(60-40)/2+1=11, 答案应该是561,为什么书后面的答案显示是560?
DS:5个数中 median 小于 average ;另外7个数也median 小于 average,然后这12个数没有重复的,12个数放在一个数集里面,问是不是median 小于average?
条件1:7个的average 小于 5个的average
条件2:7个的median 小于 5个的 median