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题目内容
（兰州交通大学-土木工程-大学英语3）
From the date ____ on the plates, we decided that they were made in Song Dynasty.
得分/总分
A.
to be marked
B.
marked
C.
having been marked
D.
marking
得分/总分
A.
to be marked
B.
marked
C.
having been marked
D.
marking
参考答案
