单选题 Ginger, pepper, cinnamon and some other aromatic flavours might be used for seasoning meat and fish, ______ was particularly important when there were no refrigerators.
【正确答案】 D
【答案解析】[解析] 句意：生姜、胡椒、桂皮和其他芬芳的香料可能被用于烹饪肉类、鱼类时的调料。若没有电冰箱，这些调料显得尤其重要。横线前有逗号，即为非限定性定语从句，只能用which不能用that。