55 One of the Coast Guard Administration duties regarding environmental protection is to avert the
introduction of invasive_________ into the maritime environment, stop unauthorized ocean dumping, and prevent oil and chemical spills.
(A) vegetation
(B) flora
(C) species
(D) habitat
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統計: A(8), B(14), C(65), D(19), E(0) #2939507
統計: A(8), B(14), C(65), D(19), E(0) #2939507