7. Prices tend to _____ throughout the year, influenced by supply, demand, seasonal trends, and global events, making it difficult for consumers to predict future costs accurately.
(A) desiccate
(B) instigate
(C) retard
(D) fluctuate
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統計: A(0), B(1), C(0), D(5), E(0) #3915408
統計: A(0), B(1), C(0), D(5), E(0) #3915408