再问PREP1-86

86.        (29247-!-item-!-188;#058&003883)

An international team of astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter, the solar system's largest planet.
   

(A) astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter
   

(B) astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to be 5 to 15 times Jupiter's mass
   

(C) astronomers is working at telescopes in the Canary Islands and Spain, having detected at least 18 huge gas spheres that are estimated at 5 to 15 times the mass of Jupiter

AlienX斑竹说这题不是比较，那么笔记上关于B选项的解释“比较对象的不对等”就是错的咯

还有一个问难，弱弱的问一下，究竟什么样的情况才是比较，什么时候又不是呢？不明白无法区分呀，谢谢

解题点： Jupiter, the solar system's largest planet. 其他为the mass 显然不是the solar system's largest planet的修辞对象

你这道题目的解释肯定错了，明显不是比较题目