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题目内容双击单词支持查询和收藏哦～
The spy's repeated bungling was,above all else, _____ those who wished to thwart her efforts, since it was so unpredictable as to obscure any pattern that might otherwise lead to capture.
- A.an obstacle to
- B.a signal to
- C.a hindrance to
- D.an indication for
- E.a snare for
- F.a boon to
A,C显示答案
以上解析由 考满分老师提供。
