10 What is Louisa Chapman concerned with?
(A) The shortage of kidneys, hearts, and livers
(B) Treatment of diseases like Parkinson’s
(C) Introduction of new germs into the human population
(D) The frequency and duration of xenotrasplants

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統計: A(4), B(24), C(29), D(10), E(0) #935475

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1993年,疾病控制和預防中心(CDCP...
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