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题目内容
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.
- Aunrelated to
- Brelevant to
- Ccontingent upon
- Ddependent on
- Eperipheral to
- Fcoterminous with
C,D显示答案
以上解析由 考满分老师提供。