2006年8月队请进！欢迎大家来讨论

liquid_84

littledou

1430.01小于X小于0.02, 1000小于y小于5000, 问(x+y)/xy的值可能是以下哪个?

10.01~500.02

3M,问你个问题：这题我看很多人给的答案都是这个，但我算出来不对啊：

(X+y)/XY=1/X+1/Y

所以我把X，Y分别求倒数然后范围相加，得出范围是 50.002~100.0001之类的。

我代了两个数进去算，也是这个范围啊：

比如要让这个数最大，XY取最小，例如0.011,1001,那么得出的结果是90多，不会超过100啊。

我不知道他们是怎么算的那个范围，好象不对。

liquid_84

104.
                    For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.

(A) were found to have increased difficulties

(B) have been found to have increased difficulty

(C) were found to have increasing difficulty

(D) had been found to have increased difficulties（B）

(E) have been found to have increasing difficulties

问 这里的since是引导原因状语从句，C为什么不对，difficult in 和difficulties in 也都能查到，有区别吗？

liquid_84

http://forum.chasedream.com/dispbbs.asp?boardid=23&id=187642&star=1#187642

语法...

sen4sun

GWD29-29

http://forum.chasedream.com/dispbbs.asp?boardid=23&replyid=1754758&id=178243

看到大家已经讨论过. 但我想选B. 请帮忙找出不合理处

[此贴子已经被作者于2006-8-15 15:32:45编辑过]

mymengming

以下是引用littledou在2006-8-15 14:46:00的发言：

1430.01小于X小于0.02, 1000小于y小于5000, 问(x+y)/xy的值可能是以下哪个?

10.01~500.02

3M,问你个问题：这题我看很多人给的答案都是这个，但我算出来不对啊：

(X+y)/XY=1/X+1/Y

所以我把X，Y分别求倒数然后范围相加，得出范围是 50.002~100.0001之类的。

我代了两个数进去算，也是这个范围啊：

比如要让这个数最大，XY取最小，例如0.011,1001,那么得出的结果是90多，不会超过100啊。

我不知道他们是怎么算的那个范围，好象不对。

我同意你的答案

zimerman

感觉 GMATprep 的语法题很有参考意义！

mymengming

以下是引用sen4sun在2006-8-15 15:07:00的发言：

GWD29-29

http://forum.chasedream.com/dispbbs.asp?boardid=23&replyid=1754758&id=178243

看到大家已经讨论过. 但我想选B. 请帮忙找出不合理处

那个不对,因为我举的那个例子么?

mymengming

Medicare, the United States government’s health insurance program for the elderly and disabled, covers the full cost of

home health care, but not with other nonhospital services where 20 percent of the costs must be paid by beneficiaries.
    

A.     but not with other nonhospital services where 20 percent of

the costs must be paid by beneficiaries.

B.     but not of other nonhospital services, making beneficiaries

pay 20 percent of the costs.

C.     but not of other nonhospital services, for which beneficiaries

must pay 20 percent of the costs.

D.     which is unlike other nonhospital services in that 20 percent

of the costs must be paid by beneficiaries.

E.      which is unlike other nonhospital services that make bene-

ficiaries pay 20 percent of the costs.

答案C

这里的but not of other nonhospital services, for which beneficiaries must pay 20 percent of the costs. 还原就是

pay for other nonhospital services,所以可以

但是这个题目

Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a
  year toward the cost of higher education, previously paying $7 per year.

 

1. year toward the cost of higher education, previously paying $7 per year
2. year toward the cost of higher education, for which was previously paid $7 per year
3. year, compared to the previously $7 per year, toward the cost of higher education
4. year toward the cost of higher education, instead of the $7 per year required previously
5. year as opposed to the $7 per year required previously for the cost of higher education

这里的which要是指代只能指代the cost of higher education,那句子还原就是pay for thepreviously the cost of higher education,逻辑意思不通的哦

Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a
  year toward the cost of higher education, previously paying $7 per year.

 

1. year toward the cost of higher education, previously paying $7 per year
2. year toward the cost of higher education, for which was previously paid $7 per year
3. year, compared to the previously $7 per year, toward the cost of higher education
4. year toward the cost of higher education, instead of the $7 per year required previously
5. year as opposed to the $7 per year required previously for the cost of higher education

这里的which要是指代只能指代the cost of higher education,那句子还原就是pay for thepreviously the cost of higher education,逻辑意思不通的哦

答案C

这里的but not of other nonhospital services, for which beneficiaries must pay 20 percent of the costs. 还原就是

pay for other nonhospital services,所以可以

但是这个题目

Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a
  year toward the cost of higher education, previously paying $7 per year.

 

1. year toward the cost of higher education, previously paying $7 per year
2. year toward the cost of higher education, for which was previously paid $7 per year
3. year, compared to the previously $7 per year, toward the cost of higher education
4. year toward the cost of higher education, instead of the $7 per year required previously
5. year as opposed to the $7 per year required previously for the cost of higher education

这里的which要是指代只能指代the cost of higher education,那句子还原就是pay for thepreviously the cost of higher education,逻辑意思不通的哦

Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a
  year toward the cost of higher education, previously paying $7 per year.

 

1. year toward the cost of higher education, previously paying $7 per year
2. year toward the cost of higher education, for which was previously paid $7 per year
3. year, compared to the previously $7 per year, toward the cost of higher education
4. year toward the cost of higher education, instead of the $7 per year required previously
5. year as opposed to the $7 per year required previously for the cost of higher education

这里的which要是指代只能指代the cost of higher education,那句子还原就是pay for thepreviously the cost of higher education,逻辑意思不通的哦

[此贴子已经被作者于2006-8-15 15:48:18编辑过]

liquid_84

我觉得B改成了被动不合理