阿摩線上測驗
38 When a rescue team arrives at a complex fire scene, they should follow the ________ for saving people trapped in elevators.
(A)symbols
(B)speculation
(C)orchestras
(D)protocols
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統計： A(0), B(3), C(1), D(0), E(0) #3930651
統計： A(0), B(3), C(1), D(0), E(0) #3930651
