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
78
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
in
解析
转载请注明原文地址:https://kaotiyun.com/show/W0Hd777K
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
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
Thesteadilyrisingcostoflaboronthewaterfronthasgreatlyincreasedthecostofshippingcargobywater.
ReducePackagingPressureincreasedrecentlyonBritishsupermarketsandretailerstoreducepackagingaspartofananti-wa
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
theclimateaffectsthefuturesustainableagriculturaldevelopment?avarietyofspeciesareonthedecrease?
随机试题
Thealarmonourhouseholdcomputerterminalringsandwakesmeup.Myhusbandsimplystirsandgoesbacktosleep.Itransfert
下列哪项HLA不能通过血清学试验鉴定
患者,男性,60岁。慢性咳嗽、咳痰伴喘息10余年,症状加重1周入院。不吸氧时PaO250mmHg,PaCO260mmHg,其氧疗原则应为
下列说法正确的是
工资核算系统应具备的特点是()。
()指在一定的生产技术组织条件下,生产工人为完成生产任务或生产合格产品实际耗用的劳动时间。
GIS应用系统的维护内容不包括()。
①以知识为主导所得出的美丑的概念,是不真实的,也是没有意义的②即如美丑而言,当天下人知道追求美的时候,就有了美丑的区分,就有了分别的见解③在老子看来,相反相成,是知识构成的特性,但并非世界本身所具有④老子并非反对人们追求美,但
甲:根据这本新闻杂志中的一篇文章,当孩子们花大量的时间看电视时,他们的手和眼的协调性就会变差。因此,我们必须限制儿子和女儿可以看电视的时间。乙:不对!那篇文章里说那些三岁以下的孩子会受到那样的影响,儿子十岁,女儿八岁,因此,我们不需要限制他们看电视。乙
自拍杆
最新回复
(
0
)