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
Which of the following is true about the immunity to HIV?
Which of the following is true about the immunity to HIV?
admin
2011-01-08
42
问题
Which of the following is true about the immunity to HIV?
About 10 percent of Europe’s present-day population seems to be resistant to HIV -- a significantly higher proportion than on other continents. Researchers have traced this immunity to a genetic mutation that seems to have appeared some 2,500 years ago, and that protects white blood cells against penetration by HIV. From the mid-14th century through the 17th century the prevalence of the mutation increased, in tandem with repeated outbreaks of the plague. The researchers suggest that the mutation protected against the disease, which culled the population of people who lacked it.
选项
A、It is partly resistance to the mutation.
B、More Europeans have it than the people on other continents.
C、It is the result of outbreaks of the plague.
D、It is a mutation that protects white blood cells.
答案
D
解析
掌握篇章结构形成的意义上的内在逻辑,支持性细节往往具体说明或解释主题。
转载请注明原文地址:https://kaotiyun.com/show/AP0O777K
本试题收录于:
CATTI二级口译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级口译综合能力
翻译专业资格(CATTI)
相关试题推荐
KofiAnnansayshelpingsurvivorsoflastweek’searthquakeand【C1】______intheIndianOceanis【C2】______.TheUnitedNationsse
中国画中国画与中医、京剧一起被誉为中国的“三大国粹”。按内容分,主要有人物画、山水画、花鸟画三大类。战国时,中国就已有比较成熟的人物画,唐代达到顶峰。著名的人物画家有顾恺之、吴道子等。山水画产生于秦代,宋代达到很高水平。著名的山水画家有
Thelegislatureshall,bygenerallaw,conformallchartersofsavingsbanks,savingsandloanassociations,orinstitutionsfor
AgreementReachedFollowingNegotiationsThehistorybookswillshowthatbothsidesgottheirfairshareofwinsandbothma
中国有近7亿网民,有6万多家信息技术企业,其中阿里巴巴、腾讯等在美上市的中国信息技术企业近50家,总市值近5000亿美元。
13亿多中国人与7亿多欧洲人命运相连、前途相关。
Atthebeginningofthetwentiethcentury,NorthAmericansocietyheld,asanideal,theNuclearFamily.Thispresumablyperfect
Imagineasocietyinwhichcashnolongerexists.Instead"cash"iselectronic,asinbankcardsystems.Currencyandcoinareab
Wehavesentanordersliptoallthatwehavereasontobelieveareinterestedinourbooks.
JohnCiardigothismaster’sdegreefromtheUniversityofMichiganin1939andhaspublishedmorethan40poems.
随机试题
糖尿病酮症酸中毒时,患者呼气带有烂苹果气味。()
填埋场址地质屏障作用可分为()。
()是增加就业岗位、减少失业、治理失业的根本对策。
证券投资基金的收益主要有()。
实施德育的途径有()。(1)各科教学(2)校级、班级工作和各种教育活动(3)少先队教育(4)家长工作和校外工作(5)心理咨询
行政法是调整行政关系的法律规范的总称。下列各项法律、法规中不属于行政法的是()。
“众里寻他千百度,蓦然回首,那人却在灯火阑珊处”这一词句的作者属于婉约词派的代表人物。()
下列选项中,属于政府的公共服务职能的是()。
下列关于物业费的说法,正确的是()
It’spossibletoadmireOprahWinfreyandstillwishHarvardhadn’tawardedheranhonorarydoctoroflawdegreeandthecommenc
最新回复
(
0
)