64. Which of the following is NOT true about hay fever?
(A) The allergen of hay fever is airborne pollens.
(B) People in the eastern United States will not suffer from hay fever in winter.
(C) Hay fever is a seasonal allergy.
(D) Suffering from hay fever is equally severe year-round.

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統計: A(5), B(47), C(8), D(108), E(0) #1345957

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