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 _____. - Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages
- 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
- the proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech
- 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
- the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech
这到题答案给的是D. 小妹愚见，此题答案应为B，因为在总人数相同，Y比Z的工钱要多的情况下，Y的每小时工资比Z高因为：Y的工人更skillful，所以每小时才高嘛 ！！~~ 如果D说的是Y的overtime work不比Z得多，两者形成一个比较，那答案是D。但现在只说两个overtime work都很少，小妹我觉得这并不能说明Y的每小时工资比Z高因为，因为就算两个overtime work都高的话，也有可能overtime work是相同的，那这样就给相同的overtime钱，两者还是相互抵消的！！~~ 希望各位大虾能给点意见，小妹将万分感谢 [em01] | 
