GRE试题（五）内容简介
GRE试题（五）
Time –30 minutes
25 Questions
drugs that cure those suffering from rare diseases
because selling a drug to only a few people usually
does not recoup manufacturing expenses．Therefore,
a company manufacturing any of the drugs that cure
those suffering from loxemia, an extremely rare
disease, will undoubtedly lose money．
Which of the following, if true, most seriously
weakens the conclusion above？
(A)Several drugs that cure those suffering from
loxemia also cure those suffering from very
common illnesses．
(B)Most of those who contract loxemia also con-
tract another illness concurrently．
(C)Most of the drug companIEs that manufacture
drugs that cure rare diseases do not manufac-
ture drugs that cure loxemia．
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