43. Which of the following can be inferred from the passage?
(A) Marine pollution poses a threat to human health.
(B) Strict regulations are being developed to stop ocean pollution.
(C) PCBs and PBDEs become less harmful over long periods of time.
(D) Chemical pollution is more serious in rivers than in industrial areas.
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統計: A(132), B(40), C(12), D(24), E(0) #2379982
統計: A(132), B(40), C(12), D(24), E(0) #2379982