阿摩線上測驗
42. Which of the following was a process used by prehistoric potters to improve the texture of
the clay?
(A) Adding temper
(B) Removing the water
(C) Beating on the clay
(D) Mixing the clay with plastic substances
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統計： A(0), B(1), C(0), D(0), E(0) #802314
統計： A(0), B(1), C(0), D(0), E(0) #802314