求助OG12 CR 112，大家来讨论讨论啊~~

wowuliao

112.The average hourly wage of television assemblers in Vernland has long been signifi cantly lower than that in neighboring Borodia. Since Borodia dropped all tariffs on Vernlandian televisions three years ago, the number of televisions sold annually in Borodia has not changed. However, recent statistics show a drop in the number of television assemblers in Borodia. Therefore, updated trade statistics will probably indicate that the number of televisions Borodia imports annually from Vernland has increased.

Which of the following is an assumption on which the argument depends?

(A) The number of television assemblers in Vernland has increased by at least as much as the number of television assemblers in Borodia has decreased.
(B) Televisions assembled in Vernland have features that televisions assembled in Borodia do not have.
(C) The average number of hours it takes a Borodian television assembler to assemble a television has not decreased signifi cantly during the past three years.（KEY）
(D) The number of televisions assembled annually in Vernland has increased signifi cantly during the past three years.
(E) The difference between the hourly wage of television assemblers in Vernland and the hourly wage of television assemblers in Borodia is likely to decrease in the next few years.

V国的电视装配工人的每小时工资比B国的低。自从3年前B国减小了对V国电视的关税，每年B国的电视销售量没变。然而，最近数据表明B国电视装配工的数量减少。因此，未来统计数据可能会显示B国每年从V国进口的电视数量增多。

大家能帮我分析分析这是怎么回事儿吗？

konglxd

Premise: Televisions are made in both V and B, and B imports TV from V.  The number of televisions sold in B keeps constant.  These TV's come from both B and V. the number of TV assemblers in B decreases.

Conclusion: TV imports from V to B has increased.

The assumption is that if TV assemblers in B are fewer, there will be fewer TV made in B.  A further assumption is that the efficiency of TV assemblers in B has not changed (answer C).

If you use negation method, you would find that after negating C, the argument falls apart. If assemblers in B become more efficient, they can produce the same amount or more TV than before, even with a lower number of total assemblers.

wowuliao

明白啦~谢谢啦~~
弱弱地问一句“自从3年前B国减小了对V国电视的关税“这句话是起什么作用呢？

konglxd

Background info.

cookiezwy

我懂了，原来薪水高低，关税降低，都是废话啊！！
GMAC原来也坑爹

nianbohu

觉得楼上说得在理，要准确得定位一个出题词，however, Tv assembler decreased, import from V to B increased.  之前的几个原因：1，平均工资（v小于b）；
2，b对于进口v电视的关税降低（three years ago);
这1，2两条说明，进口V得tv对于b是有吸引力的，而3，Tv的总销售量在b是一直stable的，这一点肯定了b的市场是有稳定得需求的。

那么，在另外一个条件，b的装电视的工人降低之后，从v进口的数量就上升了，为什么呢？因为，如果工人减少之后，所产生的一个需求缺口，要通过国际贸易来弥补。 但是，这就存在着一个assumption,b国余下工人的生产率不能有过高提升，因为，如果提升，可以产生与之前同等数量得电视，会与结论，进口v的电视背道而驰。

个人见解，望指教。

hstogether

问题是：为什么C中是decrease而不是increase? not decrease不等于not change吧？为increase(if true then weaken)预留了可能性呀？求解答~

Lhitachii

好奇怪啊，B的装配工少了，为什么就会得出B的进口多了呢？难倒从V进口的电视机就不用安装么？怎么得的结论啊！

billzhaogx

我想他这个assembler的意思是组装电视机的工人，而不是电视机生产出来以后去用户的地方安装的工人。。。

weidehou

B的总产量不变，B从V进口，B的生产者数量下降（C的答案：假设B的生产效率没有大变化），则B自产自销（生产者人数×生产效率）数量减少，故从V进口数量增加。