阿摩線上測驗
55. Freezing foods ______ the spread of bacteria, fungi, or other microorganisms even though the process does not sterilize them.
(A) retards
(B) retard
(C) to retard
(D) is retarded
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統計： A(0), B(1), C(0), D(0), E(0) #4041956
統計： A(0), B(1), C(0), D(0), E(0) #4041956
