[求助]GWDTN16-4 (GWD25-Q4)

GWDTN16-4. GWD25-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

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答案A。  A项难道是两个of并列？句意会好怪啊？

我觉得B项estimated是作定语修饰galaxies，导致and + n. 没有并列对象

其实我觉得C项平行上倒没什么问题，只是句意全变了