50. What can we infer from the passage?
(A) Plastic products will eventually be banned by most countries.
(B) Europe is more concerned about human health than the rest of the world.
(C) More research needs to be done on the harmful effect of plastic pollution.
(D) Researchers are more concerned about plastic pollution on land than in oceans
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統計: A(8), B(14), C(85), D(12), E(0) #3426379
統計: A(8), B(14), C(85), D(12), E(0) #3426379