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题目内容双击单词支持查询和收藏哦～
The sailors realized too late that winds had shifted the ice in such a way as to obstruct the ship's path; this process had been so _____ that it was completed by the time they discovered the effect.
- A.gradual
- B.negligible
- C.unpredictable
- D.time-consuming
- E.inconsequential
- F.imperceptible
A,F显示答案
以上解析由 考满分老师提供。
