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
A、The island has become famous for its research facilities. B、The patterns of marriage have changed. C、Many deaf people have reg
A、The island has become famous for its research facilities. B、The patterns of marriage have changed. C、Many deaf people have reg
admin
2010-03-26
57
问题
Good morning, students. I hope you have been able to read the two books about speech and hearing problems that I put on the list. Today’s lecture deals with the presence of the unusually large deaf population that existed on the Massachusetts island Martha’s Vine-yard for about three centuries. From the settlement of the island in the 1640s to the 20th century, the people there, who were descended from only 25 or 30 original families, married mainly other residents of the island. They formed a highly inbred group, producing an excellent example of the genetic patterns for the inheritance of deafness. Indeed in the late 1800 one out of every 25 people in one village on the island was born deaf and the island as a whole had a deafness rate at least 17 times greater than that of the rest of the United States. Even Alexander Graham Bell, the inventor of the tele- phone and a prominent researcher into hearing loss, visited Martha’s Vineyard to study the population. But because of the principles of genetics a deaf parent did not always have deaf children. In the 20th century, the local population has mixed the people off the island and the rate of deafness has fallen.
选项
A、The island has become famous for its research facilities.
B、The patterns of marriage have changed.
C、Many deaf people have regained their hearing.
D、Meat of the original population has left the island.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/60k7777K
0
大学英语四级
相关试题推荐
Whenacollegetriestobe"allthingstoallpeople"(line1,Para.1),itaimsto______.Americancollegesanduniversitiesf
Whenacollegetriestobe"allthingstoallpeople"(line1,Para.1),itaimsto______.Oneofthereasonsforthecurrentc
A、Heknowswhothewalletbelongsto.B、Hecancalltheownerfromhishouse.C、Somememberofhisfamilylostthewallet.D、The
A、Moretrafficjams.B、Morecaraccidents.C、Moredamagedroads.D、Moredrunkdrivers.AWhatistheproblemcausedbythefasti
Peoplewithdepressiongotoseetheirdoctorsmoreoftenthanpeoplesufferingfromphysicalproblems.Asthetreatmentofdep
Whatdopeopleusuallydowhentheirpetsarethoughttohavebehaviorproblems?Sinceit’smoredifficulttosolveseriousani
Japanisgoingthroughacomplexnationalidentitycrisis.Thatmaybenobadthing,saysanewbookbyanAmericanresearcher.
A、Gatheringnon-relevantmaterials.B、Stealinganotherperson’sideas.C、Sharingnoteswithsomeoneelse.D、Handinginassignmen
Robotsdomakemistakessometimes.Buttheyarenotresponsibleforthemistakes.Inoneautomobilefactory,,forexample,thed
A、Beannoyed.B、Beprotestatory.C、Betitfortat.D、Betactfullyaboutanythingmisunderstood.Dprotestatory抗议(或异议)的;titforta
随机试题
Itisknowntoallthatthenewtraderuleswillgointoeffectnextyear.
论述随意注意在课堂教学中的运用。
脊髓受伤后,损伤节段以下立即发生的完全性弛缓性瘫痪,并伴有各种反射,感觉,括约肌能丧失的临床征象称为
患者女,56岁,卵巢癌术后,拔出尿管后7小时未能自行排尿。查体:耻骨上部膨隆,叩诊呈实音,有压痛,考虑尿潴留。如果首次导尿过多,将会发生
《资格证书》是中国保监会对个人具有从事保险营销活动资格的认定,由( )统一印制。
下列交易或事项,不应确认为营业外支出的是()。
劳动法律关系的构成要素分别为劳动法律关系的()。
根据以下资料,回答以下小题。从近四次人口普查的城乡年龄结构看,比例逐次下降的年龄段人口是()。
IfIaskyouwhatconstitutes"bad"eating,thekindthatleadstoobesityandavarietyofconnecteddiseases,you’relikelyto
在标准ASCII码表中,已知英文字母A的ASCII码是01000001,则英文字母E的ASCII码是()。
最新回复
(
0
)