问题 更新时间2023/4/3 12:59:00 The professor could hardly find sufficient grounds _____his arguments in favor of the new theory. "A. to be based on B. to base on C. which to base on D. on which to base" 答案 登录 注册 D 出自：江开 >> 西安交通大学--英语三
问题 更新时间2023/4/3 12:59:00
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