[求助]大全751

751.        The Federalist papers, a strong defense of the United States Constitution and important as a body of work in political science as well, represents the handiwork of three different authors.

(A) and important as a body of work in political science as well, represents

(B) as well as an important body of work in political science, represent

(C) and also a body of work of importance in political science is representing

(D) an important body of work in political science and has been representative of

(E) and as political science an important body of work too, represent

答案是B，可是我有一个疑问：The Federalist papers到底是单数还是复数呢？从答案represent来看是复数，可是他的同位语又是 a
                    strong defense of the United States Constitution as well as an important body of work in political science，a和an说明了单数，那这样又单数又复数的会不会有点自相矛盾呢？

请指教，谢谢！

这串东西不算同位语哦，是插入语修饰，说明其性质的。

谢谢你的回覆，请问你的意思是说：如果是插入语修饰就不用管单复数的差别吗？

请指教，谢谢。

那这样的话这题的单复数到底要怎么看呢？是看papers所以用represent吗？

不用管插入语的a/an吗？谢谢！