A-A+
The case of the giant heavenly body implies th
问题详情
The case of the giant heavenly body implies that ______.
A．it is either a star or a planet
B．it was formed like a star and orbits like a planet
C．it may lead to debate over definition of "planet"
D．it can not be explained satisfactorily by conventional theory
参考答案
正确答案：D
解析：推断题。第四段提到了传统理论认为这个巨大的星应当是一颗恒星，旁边的那颗小的是它的行星；但是这两颗星星的轨道非常近，因此它们很有可能是同时形成的，也许那颗大的也是一颗行星。可见，传统理论对该发现并不能做出合理解释。
