The company established a platform in 2017 ______ collision experiments can be carried out for railw...
2022-06-24 09:51:17 168次 2020届江苏省高三综合检测三英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The company established a platform in 2017 ______ collision experiments can be carried out for railway vehicles.
A.where B.when C.that D.which
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