問題詳情

Hay fever is a seasonal allergy to pollens. The term “hay fever,” however, is a less than adequate descriptionsince such an attack can be brought on by sources other than hay-producing grasses and since an attack of thisallergy does not include a fever. The cause of hay fever can be quite varied. Hay fever is generally caused byairborne pollens, particularly ragweed pollen. The amount of pollen in the air is largely dependent on geographicallocation, weather, and season. In the eastern section of the United States, for example, there are generally threeperiods when pollen from various sources can cause intense hay fever suffering: in the springtime months ofMarch and April, when pollen from trees is prevalent; in the summer months of June and July, when grass pollenfills the air; and at the end of August, when ragweed pollen is at its most concentrated levels. What results from anattack of hay fever is not a fever. Instead, a person with hay fever will suffer symptoms such as red and itchingeyes, a swollen and runny nose, and repeated bouts of sneezing.
62. Several factors determine the amount of pollen in the air. Which of the following is NOT one of them?
(A) weather
(B) mood
(C) place
(D) season

參考答案

答案：B
難度：簡單0.866667
統計：A(4),B(39),C(1),D(1),E(0)

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