12. A _______ of pottery found at the site proved to be of great age.
(A) collation
(B) shard
(C) design
(D) vase
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統計: A(4), B(3), C(3), D(5), E(0) #2728276
統計: A(4), B(3), C(3), D(5), E(0) #2728276