gwd25-4，谢谢啊！

Q4.

Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of many of the 100 billion other galaxies estimated to exist in the universe.

A.     that a black hole lies at the center of the Milky Way and of

B.     that a black hole lies at the Milky Way’s center and

C.     that there is a black hole lying at the milky Way’s center and

D.     of a black hole lying at the Milky Way’s center and

E.      of a black hole that lies at the center of the Milky Way and of

答案是a，请问a中的最后那个of起什么作用，和谁平行?是用来修饰theory的吗？如果是这样的话，那么e岂不是更加对称？

我觉得应该是和of the Milkly Way 平行吧？

哦，有道理。可是这样很难判断的呀！

.... of many of the 100 billion other galaxies..........黄色的部分构成短语,和谁也不平行.

第一个of 和前面 center of the Milkyway 平行

Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of many of the 100 billion other galaxies estimated to exist in the universe.

A.     that a black hole lies at the center of the Milky Way and of

B.     that a black hole lies at the Milky Way’s center and

C.     that there is a black hole lying at the milky Way’s center and

D.     of a black hole lying at the Milky Way’s center and

E.      of a black hole that lies at the center of the Milky Way and of