Innits of the Bering Sea were in isolation from contact with Europeans longer than Aleuts or Inuits of the North Pacific and northern Alaska.
A: in isolation from contact with Eurpoeans longer than
B: isolated from contact with Eurpoeans longer than
C: in isolation from contact with Eurpoeans longer than were
D: isolated from contact with Eurpoeans longer than were
E: in isolation and without contact with Eurpoeans longer than
答案选D，我觉得应该选C的，be isolated from 应该是一个时间点的动作，不能用时间长短来修饰，in isolation from 就是一种状态，就有时间长短了，请各位帮一下我。
