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题型:单选题 题类:常考题 难易度:普通

天津市静海县第一中学、杨村一中、宝坻一中等六校2017-2018学年高一上学期英语期中联考试卷

The instrument _____ to test the new drug was a great success, which excited the local people.
A、designing B、to design C、designed D、was designed
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