题目:Data has shown that more Hispanic and black students are majoring in computer science and engineering than_______.
选项:A. those are being hired B. being hired C. are being hired D. hired
这道题我的理解是:攻读计算机科学和工程专业的学生多于成功就业的学生,题目考查more...than...结构;我的问题是:我认为“are majoring...”这里已经有are了,为什么than后面还要用are being hired,不能直接being hired吗?than后面可以加is,are吗?
另外,A为什么不对呢?
希望老师指点迷津,谢谢老师!