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一道英语词意辨析的单选

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/01 12:48:28
一道英语词意辨析的单选
A firm has revealed a set of robotic legs which they claim will soon allow____wheel chair bound people to walk again. A originally BpreviouslyC properlyDprimarily
最初是和现在相对