首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
Study Says Dogs Can Smell Cancer Dogs are known for their sense of smell. Th...
Study Says Dogs Can Smell Cancer Dogs are known for their sense of smell. Th...
admin
2020-12-24
9
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 (癒)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 spanie丨s (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.
Which is NOT true of bladder cancer?
选项
A It is the 9 th most common cancer worldwide.
B It can be identified only by dogs.
C It kills more than 100, 000 people each year.
D It is mainly caused by smoking.
答案
B
解析
最后一段三个句子分别证明A、C、D三个选项是正确的,只有B项没有提到,根据 推理,也不可能是正确的。
转载请注明原文地址:https://ti.zuoweng.com/ti/rX9QKKKQ
相关试题推荐
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
共用题干 TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugca...
Manyformsofcancercanbecuredifdetectedearly.AselectedBoperatedCdisc
UsingHIVVirustoCureCancer Scientistsareplanningtousehumanimmunode...
随机试题
(5-10题共用备选答案) A.单侧声带固定于旁正中位 B.声门闭合不全,可
当前我国改善空气质量的重要措施有()。 A.绿化生态环境B.减少污水排放
请简要阐述教育与政治制度是怎样的一种相互关系。
雄黄的性状为
下列条款无效的是( )。
下列哪种激素与水盐代谢无关 A.姨岛素 B.皮质醇 C.抗利尿激素 D.
某女,10岁因外伤造成冠折,髓室暴露,叩(+),余无异常,X线片显示根尖尚未完全形成,最佳处理方法是A.拔除患牙后,固定义齿修复B.拔除患牙后,种植义齿修复
治肝阳上亢、心神不宁、失眠多梦、心烦,宜选用()。A.酸枣仁B.远志C.人参D.朱砂E.磁石
外币有价证券包括()。A:外国货币B:政府证券C:公司债券D:股票
下列有关财务报表审计中对法律法规的考虑的说法中,错误的是()。A.针对被审计单位需要遵守的第一类法律法规,注册会计师应当就被审计单位遵守这些法律法规获取充分、