题目内容
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[主观题]
Itcan be inferred from the last paragraph that [A] Dr.Vink does not treat her research res
ults with enough care. [B]there are always people who try to copy other' s researches. [C] MarkTwain' s problem will be other smokers' problem in the future. [D] manysuch researches as Dr. Vink' s have not been done thoroughly.
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