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
64
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
blocked
解析
转载请注明原文地址:https://kaotiyun.com/show/k0Hd777K
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
SchoolingandEducationItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Neve
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
A.differsamonganimalspeciesB.topsychologicaldistanceC.begintoattackD.tophysiologicaldistanceE.distancebetweenana
theclimateaffectsthefuturesustainableagriculturaldevelopment?avarietyofspeciesareonthedecrease?
随机试题
男性27岁,转移性右下腹痛20小时,伴呕吐1次,诊断为急性阑尾炎。一般来说,导致发病的最可能的原因是
既能收敛止血,又兼能散瘀的药物是
关于用作砂和沙砾石地基的材料,说法正确的是()。
当未来市场利率趋于下降时,应选择发行( )。
(2011年考试真题)B公司是一家制造类企业,产品的变动成本率为60%,一直采用赊销方式销售产品,信用条件为N/60。如果继续采用N/60的信用条件,预计2011年赊销收入净额为1000万元,坏账损失为20万元,收账费用为12万元。为扩大产品的销售量,B公
(2020年)恒发公司是上市公司,明方公司持有恒发公司29,9%的股份,是其控股股东。2018年8月,明方公司管理层与朱亚集团接触,拟将其持有的恒发公司全部股份转让给朱亚集团。8月16日,市场出现传闻,称明方公司拟将其持有的恒发公司股份售出以偿还质押融资款
江苏联通电商业务类别包括以下哪些?
地壳均衡论表明,总的高度至少能部分地互相弥补。因为当山上的土石被冲下山来,山脉失去了重量,因而就漂得高一点,补充了一点失去的高度;而海底接受了河流冲来的大量泥沙而变得重了,于是就会下降,从而部分地抵消了因大量泥沙的沉积而增加了的高度。根据这段文字,下列说法
Universitiesareinaseeminglyself-contradictoryposition.AsStefanCollinipointsoutinhisbook,theseancient【C1】______ha
Oneofthemostfamousandmosttalked-aboutactressestocomeoutofHollywoodhasdied.Film【B1】______ElizabethTaylordiedW
最新回复
(
0
)