求高手帮忙！！！！

guanghenry

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 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?

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.
   
   
   答案是C，谁能给我分析下阿 ！！
   

465983809

题目是说电视装配工 in Vernland 的平均小时工资一直低于neighboring Borodia 的水平。 三年前，Borodia 降低了对 Vernlandian televisions  的关税。最近数据表明电视装配工 in Borodia 的人数减少，所以可能说明Borodia 从Vernland 进口电视机的数量增加了。  C项 是说Borodia处的电视装配工工作效率没有提升。取非法： 人数的减少可能是效率提升的结果 而不是进口增加的原因了，这题也是典型的无他因。