30 Light search-and-rescue operations are often conducted by firefighters, but other ______ workers may assist in
similar operations.
(A)emergency
(B)orphanage
(C)interface
(D)antonym
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統計: A(676), B(93), C(92), D(59), E(0) #1609655
統計: A(676), B(93), C(92), D(59), E(0) #1609655