新GRE小短文阅读练习题二十九
A certain type of dinnerware made in Ganandia contains lead.Lead can leach into acidic foods, and Ganandians tend to eat
highly acidic foods.However, the extreme rarity of lead poison-
ing in Ganandia indicates that the dinnerware does not contain
dangerous amounts of lead.
Which of the following, if true, most seriously weakens the argu-
ment above?
The dinnerware is produced exclusively for sale outside
Ganandia.
Ganandian foodstypically are much more acidic than
foods anywhere else in the world.
The only source of lead poisoning in Ganandia is lead
that has leached into food.
Most people who use the dinnerware are not aware that
it contains lead.
Acidic foods can leach lead from dinnerware even if that
dinnerware has a protective coating.
答案 A
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