首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
An allergy is an unusually strong reaction (31) a substance. Many things can cause allergies. The most common cause is pollen. T
An allergy is an unusually strong reaction (31) a substance. Many things can cause allergies. The most common cause is pollen. T
admin
2009-06-24
63
问题
An allergy is an unusually strong reaction (31) a substance. Many things can cause allergies. The most common cause is pollen. Trees usually produce pollen in the spring, grasses in the summer and weeds in the fall (32) part of their reproductive process.
Other causes include organisms such as dust mites and molds. Chemicals, plants and dead skin particles (33) dogs and cats can also cause allergic reactions. (34) can insect stings and some foods.
The most common kind of (35) reaction is itchy, watery eyes and a blocked or watery nose. Allergies can also (36) red, itchy skin. Some reactions can be life-threatening—for example, when breathing passages become (37).
Avoiding (38) causes an allergy may not always be easy. Antihistamine drugs (39) offer an effective treatment. Another (40) used in some cases is called immunotherapy. A patient is (41) with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time (42) the patient develops a resistance (43) the allergen.
In the United States, experts estimate that up to four percent of adults and up to eight percent of young children have food (44). Every year these allergies cause about thirty thousand (45) of anaphylaxis, a severe reaction that requires immediate treatment.
It can result (46) trouble breathing and in some cases death. The National Institute of Allergy and Infectious Diseases says one hundred to two hundred people die. It says most of the reactions are caused (47) peanuts and tree nuts such as walnuts.
People can also be allergic to medicines. The American Academy of Allergy, Asthma and Immunology says about five to ten percent of bad reactions to commonly used (48) are allergic. In other words, a person’s immune system overreacts and (49) an allergic reaction. The (50) common reactions include skin rashes, itching, breathing problems and swelling in areas such as the face.
选项
答案
to
解析
转载请注明原文地址:https://kaotiyun.com/show/D0Hd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
SchoolingandEducationItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Neve
SchoolingandEducationItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Neve
SchoolingandEducationItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Neve
ProfessorTaylor’stalkhasindicatedthatsciencehasaverystronginfluenceontheeverydaylifeofnon-scientistsaswellas
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
Thesteadilyrisingcostoflaboronthewaterfronthasgreatlyincreasedthecostofshippingcargobywater.
Thisspecieshasnearlydiedoutbecauseitshabitatisbeingdestroyed.
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
随机试题
氩气比空气轻,使用时易漂浮散失,因此焊接时必须加大氩气流量。
Thankyouforthe______youdidmetomovethesofaupstairs.
急性乳腺炎的正确预防措施是
砂桩复合地基提高天然地基承载力的机理是:
下列关于地形图的精度说法错误的是()。
下列说法正确的有()。
法律的公布是全部立法程序中最具决定意义的步骤。()
目前我们的城市化道路走了一条不符合中国的道路,为什么?一是现有的城市发展是“关起门来搞城市化”,把农民关在城外,自己在城内搞现代化,这是为城市“锦上添花”,而不是搞农村“人口城市化”。二是我们在城市化道路上搞“天女散花”,强调大力发展小城镇,因为“小城镇,
就给定资料反映的问题,用不超过150字进行概括。要求:全面,有条理,有层次。就给定资料,自选某一角度,自拟标题,写一篇1000字左右的文章。要求:中心明确,内容充实,论述深刻,有说服力。
依次填入下列各句空缺处的词语最恰当的一组是______。①只有多一点直面废墟的勇气,理解废墟所______的公理和道义,对历史保持清醒的态度,社会才会不断走向进步和繁荣。②他在担任省劳动厅长期间,违反组织人事纪律,______职权先后将未经
最新回复
(
0
)