GWD-5-3

I choose B, but the answer is C. I don't get it. Can anybody help me figure it out? Thanks a lot.

"The average hourly wage of television assemblers in Vernland has long been significantly 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 droip 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?

1. The number of television assemblers in Vernland has increased by at least as much as the number of television assemblers in Borodia has decreased.


2. Televisions assembled in Vernland have features that televisions assembled in Borodia do not have.


3. The average number of hours it takes a Borodian television assembler to assemble a television has not decreased significantly during the past three years.


4. The number of televisions assembled annually in Vernland has increased significantly during the past three years.


5. 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."

C is the assumption. C states that the time of a B assembler to assemble a TV hasn't drop, we know, sum= N(assemebler) * working hour / T ( time needed to assemble a TV). To be symplified, sum=N*H/ T, if T drop, even N drop, then sum will probably not drop. C declares that T hasn't drop.

这个解释好。充分解释了第一句话的作用。

这句话很饶的。设了一个套，做题目的时候，突然发觉这句没用，然后看选项的时候，就开始迷糊了。