题目感觉很简单不过答案选D看不懂! GWD 2-verbal 18.

Q18:

Which of the following most logically completes the argument?

Yorco and Zortech are two corporations that employ large numbers of full-time workers who are paid by the hour.  Publicly available records indicate that Yorco employs roughly the same number of such hourly wage workers as Zortech does but spends a far higher total sum per year on wages for such workers.  Therefore, hourly wages must be higher, on average, at Yorco than at Zortech, since _____.

1. Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages
2. the work performed by hourly wage workers at Zortech does not require a significantly higher level of skill than the work performed by hourly wage workers at Yorco does
3. the proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech
4. overtime work, which is paid at a substantially higher rate than work done during the regular work week, is rare at both Yorco and Zortech
5. the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech

答案选D 我选B 请高手支着！

D排除掉了加班工资不同导致总工资成本不同的例外情况，使得Yorco的小时工资更高的结论成立。

B对比的是工作技能的差异，与结论无关。

总数Y大于Z

都用小时计费，

单价Y大于z

排除其他原因造成的总数变大的情况