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
that a black hole lies at the Milky Way’s center and
that there is a black hole lying at the Milky Way’s center and
of a black hole lying at the Milky Way’s center and
of a black hole that lies at the center of the Milky Way and of
我觉得B可能正确些. My understanding is: the theory that a black hole lies at the Milky Way’s center and many of the 100 billion other galaxies (estimated to exist in the universe). 划线两者是并列, 括号部分修饰GALAXIES. 请大家给出意见.另外,想问问, 其他GWD的讨论在哪里啊? 偶第一次做GWD, 是不是错误的题基本得靠自己却分析和解释?没有答案的解释吧? 这标准答案是谁提供的呢? 不好意思, 问题可能比较傻