首页
登录
职称英语
Common cold is a viral infection that starts in the upper respiratory tract,
Common cold is a viral infection that starts in the upper respiratory tract,
游客
2023-11-13
58
管理
问题
Common cold is a viral infection that starts in the upper respiratory tract, sometimes spreads to the lower structures, and may contribute secondary infections in the eyes or middle ears. The main differences between the common cold and other respiratory infections are the absence of fever and the relative mildness of the symptoms.
About 200 different strains of virus are capable of producing colds. Frequently two or more different viruses can be isolated during a single episode. The cold is spread by person-to-person contact. People can carry the virus and communicate it without themselves experiencing any of the symptoms. Incubation is short — usually one to four days. The viruses start spreading from an infected person before the symptoms appear, and the spread reaches its peak during the symptomatic phase. The incidence of colds peaks during the autumn, and minor epidemics commonly occur throughout the winter. The reason for this incidence is unknown; it may not stem mainly from stresses imposed by chilly weather but rather result from the greater amount of time spent indoors, which increases the likelihood of close contact with those persons carrying cold viruses.
Pathologic changes occurring in the mucous membrane that lines the nose, the nasal sinuses, the nasoharynx, and other upper respiratory passages may include tissue swelling, congestion of blood, and oozing of fluids. During the acute phase of the disease, the respiratory secretions are altered by increase in serum proteins. Parts of cells may also be found in the fluids. Tissue repair is rapid and seems complete, although a relationship might exist between colds and more serious respiratory conditions.
Cold symptoms vary from person to person, but in the individual the same symptoms tend to recur in succeeding bouts of infection. Manifestations may include sneezing, headaches, fatigue, chilling, sore throat, inflammation of the nose (rhinitis;, and nasal discharge. There is usually no fever. The symptoms usually last for only a few days. The nasal discharge is the first warning. The secretions become watery, clear, and excessive. Later, they thicken, increase in mucus and pus content, and may colour a yellow-green, with traces of blood. Coughing can be dry or produce amounts of mucus. Other more serious diseases with similar general symptoms may be mistaken for a cold; some of these are tuberculosis, bronchitis, lung abscesses, and inflammation around the heart.
Treatment is, in most instances, directed toward allaying of symptoms, coupled with rest and adequate fluid intake. Occasionally antibiotics are given to prevent secondary infections. [br] Which of the following is NOT a treatment to cold?
选项
A、More rest.
B、Drink enough water.
C、Take antibiotics.
D、Stay indoors more.
答案
D
解析
根据关键词treatment定位到最后一段。本段列举了几个治疗感冒的方法。其中,[A]和[C]项都是对原文的重复;[B]是对adequate fluid intake的同义转述;[D]项在文中有提及,但是,“大部分时间待在室内”是引起感冒的一个主要原因,而不是治疗方法。所以,本题答案为[D]。
转载请注明原文地址:http://tihaiku.com/zcyy/3183174.html
相关试题推荐
OncehestartstalkingaboutChineseorforeignaffairs,ancientormodern,_____
Incontrasttologic,thereiscommonsense,orstillbetter,theSpiritof
Incontrasttologic,thereiscommonsense,orstillbetter,theSpiritof
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplego
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplego
Inrecentyears,second-handtransactionhasbeenquitecommon.Inthemarke
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Itisacommonthemeinmanysciencefictionstoriesthattheworldmayoneday
Whyaredivorcessocommonatpresent?[br][originaltext]Agoodmarriage
随机试题
SaveMoneyorBorrowMoney?1.有人喜欢存钱2.有人却喜欢提前消费3.我喜欢…Save
SummaryListentothepassage.Forquestions26~30,completethenotesusingno
设A是4×3矩阵,且r(A)=2,而,则r(AB)=_________.
下列关于审计风险的说法中,不正确的有:A、固有风险(重大错报风险)与检查风险成正
某饭店一项设备的账面原值为100000元,预计净残值率为5%,使用年限为5年,则
某建筑场地条件为:地表以下0~12m为可塑状态黏性土,单桥静力触探比贯入阻力Ps
男性,16岁。低热、咳嗽伴食欲减退、消瘦2个月,胸部X线片示右中肺片状阴影,右肺
英国科学家指出.在南极上空,大气层中的散逸层顶在过去40年中下降了大约8公里
对革兰阳性菌作用强,对革兰阴性菌作用弱的药物是()A.第一代头孢菌素 B
从投标人的报价策略来说,下列情形中报价可高一些的情形是()。A.工作简单、工程
最新回复
(
0
)