One day in 1939, Norman Bethune cut his finger during ______ operation. A.a B./ C.an D.the
2022-09-14 23:52:42 128次 天津市红桥区2019-2020学年九年级上学期期末英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
One day in 1939, Norman Bethune cut his finger during ______ operation.
A.a B./ C.an D.the
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