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题目内容双击单词支持查询和收藏哦～
A successful space shuttle launch is _____ such a great number of factors--any of which can sabotage a lift-off--that spectators should not chafe at the slightest sign of delay.
- A.unrelated to
- B.relevant to
- C.contingent upon
- D.dependent on
- E.peripheral to
- F.coterminous with
C,D显示答案
以上解析由 考满分老师提供。
