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
Common cold is a viral infection that starts in the upper respiratory tract, sometimes spreads to the lower structures, and may
Common cold is a viral infection that starts in the upper respiratory tract, sometimes spreads to the lower structures, and may
admin
2015-06-27
33
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.
Which of the following statements is TRUE?
选项
A、Common cold is the first warning of bronchitis.
B、Tuberculosis is believed to have developed from common cold.
C、The application of antibiotics is the only effective means in the treatment of common cold.
D、Radical surgery is never needed in the treatment of common cold.
答案
D
解析
文章第四段最后一句提到“可能把其他症状大体相同的更严重的疾病错当成感冒,这样的疾病有:肺结核、支气管炎、肺脓肿以及心肌炎”,由此可知,[A]“普通感冒是支气管炎的最早征兆”和[B]“人们认为肺结核是由感冒演变的”表述不正确。文章最后一句提到“偶尔使用抗生素预防继发性感染”,由此可知,[C]“使用抗生素是治疗感冒的唯一有效手段”表述不正确。由最后一段第一句“对于大多数感冒,治疗在于减轻症状,再加上休息和多喝水”可知,[D]“治疗感冒无需进行大手术”符合原文,故为答案。
转载请注明原文地址:https://kaotiyun.com/show/TmXK777K
0
专业英语四级
相关试题推荐
Theconversationismainlyabout_______.
MadeinChina中国制造Thelabel,MadeinChina,isonethatisbecomingincreasingcommon/inshoppingcentersalloverthewo
Fewpeopleexpectluxurywhileflying,butthesedays,eventhebasicsseemtobeinbadshape.It’snotuncommontofindyourt
Theexaminationswhetherconsideredgoodorbad
Theboytiptoedoutoftheroomandheadedfortheswimmingpoolwithouthisfather’s
WriteonANSWERSHEETTHREEanoteofabout50-60wordsbasedonthefollowingsituation.Yourfriendhasjustwonthefirst
Whencoal,the______ofplants,isburnt,chemicalenergyischangedintoheatenergy.
Soconfused______thathedidn’tknowhowtostarthislecture.
Therelationshipbetweenthehomeandmarketeconomieshasgonethroughtwodistinctstages.Earlyindustrializationbeganthep
Annawasreadingapieceofsciencefiction,completely______totheoutsideworld.
随机试题
世界上第一家通讯社是1835年创办的()
急性呼吸窘迫综合征病理生理改变叙述错误的是
患者男,68岁,突发剧烈胸痛2小时入院,往有高血压病史,未予重视。查体:血压180/100mmHg,脉搏80次/min,双肺呼吸音粗,未闻及湿啰音,心率80次/min,律齐,未闻及杂音。为明确诊断应进一步做哪些检查
下列哪项指标不能用来评估溶栓疗法
祁先生,36岁,车祸中钢棒刺伤其左腋下,出现烦躁不安,呼吸困难,口唇发绀,左腋下胸壁有伤口,呼吸时能听到空气出入伤口的“嘶嘶”响声,气管向健侧移位,患侧胸部叩诊鼓音。该病人的急救措施首先是()。
简述整套系统调试定义。
增长型基金的基本目标是()。
下列不属于债项评级系统中要进行计量和评价的特定风险因素的是()。
A公司在2006年制定了新的发展战略:2008年收入达到20亿元,2009年达到100亿元,2010年达到200亿元。为了配合该扩张战略,公司决定对人力资源的运用与配备进行规划,为此他们采用德尔菲法来预测劳动力需求。
关于水稻,下列说法错误的是:
最新回复
(
0
)