The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being so far away from Earth that their apparent positions in the sky do not change enough for their movement to be observed during a single human lifetime.
97. The stars, some of them at tremendous in motion just as the planets are, yet being so far away from Earth that their apparent positions in the sky do not change enough for their movement observed during a single human lifetime. (A) The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being
(B) Like the planets, the stars are in motion, some of them at tremendous speeds, but they are
(C) Although like the planets the stars are in motion, some of them at tremendous speeds, yet
(D) As the planets, the stars are in motion, some of them at tremendous speeds, but they are
(E) The stars are in motion like the planets, some of which at tremendous speeds are in motion but
答案是B,但是为什么不选A呢? 答案说placement of the modifying phrase and the comparison are awkward and ineffective;being provides neither a subject nor a verb for the second main clause. 我不太懂第一个原因, 第二个原因我觉得不成立呀,直接being引导的部分作为伴随状语,are inmotion的结果不久行了嘛?