阿摩線上測驗
26 Firefighters must stay______ and be prepared to respond quickly during emergencies.
(A) flexible
(B) alert
(C) causal
(D) static
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統計： A(40), B(196), C(28), D(16), E(0) #3256032
統計： A(40), B(196), C(28), D(16), E(0) #3256032
