新GRE小短文阅读练习题四十二
Hundreds of seals have died recently from consuming fish of a certainspecies that have been contaminated with an industrial chemical that is
toxic to mammals, even in small amounts.Yet even though many people
also eat fish of that species, none of these people have been harmed
as a result.
Which of the following, if true, most helps to resolve the apparent
discrepancy?
The species of fish contaminated by the toxic chemical is not itself
harmed by that chemical.
The toxic chemical collects in those parts of the fish eaten by seals
but not by people.
Traces of the toxic chemical have been found in some people
whose diets include no fish or fish products.
The species of fish contaminated by the toxic chemical comprises
a relatively small pa r t of the seals' total diet.
The toxic chemical remains toxic even after exposure to tempera-
tures higher than those at which the fish is generally cooked.
答案B
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