They discovered a large collection of old pots Qin Dynasty, which are still today.
A. dates from; very valuable
B. dating back to; of great value
C. dated back to; of much value
D. dating from; very value
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A. dates from; very valuable
(答案→)B. dating back to; of great value
C. dated back to; of much value
D. dating from; very value
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