The cameras of the Voyager Ⅱ spacecraft detected six small, previously unseen moons circling Uranus, which doubles to twelve the number of satellites now known as orbiting the distant planet.
(B) doubling to twelve the number of satellites now known to orbit
(C) which doubles to twelve the number of satellites now known in orbit around
(D) doubling to twelve the number of satellites now known as orbiting
(E) which doubles to twelve the number of satellites now known that orbit
答案是B
我的問題是 這題句子無法解析阿∼∼∼

那個, previously unseen moons circling Uranus, 是插入句嗎?
主詞 cameras 動詞 detected 受詞 six small? 然後呢??
OG的解釋說 which 不能指涉整句 只能指涉前面的某一名詞 我同意
可是剩下選項(B)(D),doubling... 不是變成指涉前一名詞 Uranus了嗎?
後段known as orbiting那裡
(C)是一定錯啦 因為 orbit 就有 around 的意思了 而且可以用動詞解釋的比較簡潔 他卻用名詞 in orbit....
另外as 的詞性在這裡為何?
(A)(D)(E)若要對 是不是當作 known 的受詞關代 而改為known as/that they(加上主詞) orbit....?
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