According to a study by the Carnegie Foundation for the Advancement of Teaching, companies in the United States are providing job training and general education for nearly eight million people, about equivalent to the enrollment of the nation's four-year colleges and universities.
比较题就是要看清比较对象是谁和谁, A 数字跟enrollment比较,不对 B equivalent of----短语使用错误 C 数字跟人(those are enrolled)又来比较了 D 数字跟enrollment比较,错误同A E 省略补全,可根据逻辑含义理解为as many as (the number of young men that )are enrolled in