问题 更新时间2023/4/3 12:59:00 3. The ruins of the ancient city ________ of great cultural value and should be preserved for research in the future. ( )(本题2.0分) A、 is B、 are C、 was D、 were 答案 登录 注册 标准答案：B 出自：青书学堂 >> 洛阳理工学院-英语2(高起专)
问题 更新时间2023/4/3 12:59:00
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