3. There was only _______ set onboard, which inhibited the capability of the crew in fighting the fire.
(A)PSC
(B)SMS
(C)SCBA
(D)MSC
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統計: A(1), B(0), C(1), D(0), E(0) #4067948
統計: A(1), B(0), C(1), D(0), E(0) #4067948