The __________ to the rocket going into space went wrong, and as a result it exploded and fell into ...
2022-11-24 00:15:27 138次 2016届湖北省高一上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The __________ to the rocket going into space went wrong, and as a result it exploded and fell into the sea.
A．mark B．sign C．symbol D．signal
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