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
Study Says Dogs Can Smell Cancer Dogs are known for their sense of smell. They can find missing people and things like bombs
Study Says Dogs Can Smell Cancer Dogs are known for their sense of smell. They can find missing people and things like bombs
admin
2015-08-08
44
问题
Study Says Dogs Can Smell Cancer
Dogs are known for their sense of smell. They can find missing people and things like bombs and illegal drugs. Now a study suggests that the animal known as man’s best friend can even find bladder(膀胱)cancer.
Cancer cells are thought to produce chemicals with unusual odors(气味). Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine(尿). The sense of smell in dogs is thousands of times better than in humans.
The study follows reports of cases where, for example, a dog showed great interest in a growth on the leg of its owner. The mole(痣)was later found to be skin cancer.
Carolyn Willis led a team of researchers at Amersham Hospital in England. They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patients, from people with other diseases and from healthy people.
Each dog was tested eight times. In each test there were seven samples for the dogs to smell. The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.
Two cocker spaniels(短腿长毛垂耳小猎犬)were correct fifty-six percent of the time. But the scientists reported an average success rate of forty-one percent.
As a group, the study found that the dogs chose the correct sample twenty-two out of fifty-four times. That is almost three times more often than would be expected by chance alone.
The British Medical Journal published the research. In all, thirty-six bladder cancer patients and one hundred and eight other people took part.
During training,all the dogs reportedly even identified a cancer in a person who had tested healthy before the study. Doctors found a growth on the person’s right kidney(肾).
Bladder cancer is the ninth most common cancer worldwide. The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer.
The person who had tested healthy before the study______.
选项
A、dropped out
B、passed away
C、was found to have cancer
D、was found to remain healthy
答案
C
解析
第九段说到,这位以前被检查为健康的人被确认患有癌症,医生查出右肾长有瘤子。
转载请注明原文地址:https://kaotiyun.com/show/ECmd777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Youwillhearfivepeoplegivingreasonswhychildrenlearntheirmothertonguesowell.Beforeyoulisten,readthelistof
Lookatthetenstatementsforthispart.YouwillhearashortinterviewwithGeorgeJones,executivedirectorforBreadfo
Lookatthetenstatementsforthispart.YouwillhearashortinterviewwithGeorgeJones,executivedirectorforBreadfo
Annawasemployedbya(9)______whenshefirststartedsailing.Theideaofsailingroundtheworldcamefromabookcalled
THETRAINJOURNEY0YouknowIwasgoingdowntoLondontostaywithmyfriend00Aliceduringtheholidays.Well,thetr
Lindawantstochangeacassettebecauseshedislikesit.LindahasalreadyseentheIrishband.
DearDavid,I’mgoingtovisityourcountrynestmonth.I’mgoingtotravel【B1】______twofriends.Wedon’tknow【B2】____
DearDavid,I’mgoingtovisityourcountrynestmonth.I’mgoingtotravel【B1】______twofriends.Wedon’tknow【B2】____
ICE-FISHINGIfyoudrivenorthfromTorontoforthreehours,youcometoLakeNipissing.Inwinter,thelakebecomesice,and
Ittookusalongtimetomendthehouse.
随机试题
下列影响心脏外形的生理因素,哪项正确
社会医学创立于
阿托品对哪种平滑肌的解痉作用最明显
免予刑事处罚是指:()
一些涉及危险品的事故,尽管其起因和影响不尽相同,但是它们都有一些()共同的特征,会造成工厂内外大批人员伤亡,或是造成大量的财产损失或环境损害,或是两者兼而有之。
某企业的预期年收益额为15万元,该企业的各单项资产的评估价值之和为60万元,企业所在行业的平均收益率为20%,以此作为适用资本化率计算出的商誉的价值为()万元。
()是影响债券定价的外部因素。
下列关于法定公积金的表述中,符合公司法律制度规定的是()。(2012年)
Theaudiencedislikedthefilmthoroughlyandwere________bywhistlingandstampingtheirfeet.
下列关于光纤同轴电缆混合网HFC的描述中,错误的是()。
最新回复
(
0
)