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 patterns of marriage have changed. B、Many deaf people have regained their hearing. C、Most of the original population have
A、The patterns of marriage have changed. B、Many deaf people have regained their hearing. C、Most of the original population have
admin
2010-10-28
59
问题
Good morning students. This class I brought two books that I had been reading. I want to introduce them to you because I hope you have been able m read the two hooks. They are about speech and hearing problems that I put in the library. (26) Today’s lecture deals with the presence of the unusually large deaf population that had existed on the Massachusetts island of Martha’s Vineyard 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 twenty-five or thirty 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 lair: 1800s, one out of every twenty-five people in one village on the island was born deaf and the island as a whole had a deafness rate at least seventeen times greater than that of the rest of the United Status. (27) Even Alexander Graham Bell, the inventor of the telephone and a prominent researcher into hearing loss, visited Martha’s Vineyard to study the population. But because the principles of genetics and inheritance were still unknown, he was not able to explain the patterns of deafness and why a deaf parent did not always have deaf children. (28) In the 20th century, the local population has mixed with people off the island and the rate of deafness has fallen.
选项
A、The patterns of marriage have changed.
B、Many deaf people have regained their hearing.
C、Most of the original population have left the island.
D、The island has become famous for its research facilities.
答案
A
解析
综合理解题 。文章最后提到在20世纪该岛的现状,the local population has mixed with people off the island and the rate of deafness has fallen,以前的婚姻模式已经得到了改变,由此deafness的数量也减少了,正确答案选A项。
转载请注明原文地址:https://kaotiyun.com/show/vzs7777K
0
大学英语六级
相关试题推荐
A、Theyareunimportantandshouldbedisregarded.B、Theymaygiveushelpfulcluesaboutourselves.C、Onlyatrainedpsychologis
Ingeneral,oursocietyisbecomingoneofgiantenterprisesdirectedbyabureaucraticmanagementinwhichmanbecomesasmall
A、Abusstation.B、Anairport.C、Asuperhighway.D、Atrainstation.B
A、ItisrunbyMrs.Winter’shusband.B、IthiresMrs.Winterasanadviser.C、Itgivesa30%discounttoallcustomers.D、Itenc
A、Interviewerandinterviewee.B、Teacherandstudent.C、Saleswomanandcustomer.D、Policewomanandwitness.A
A、Thenextday.B、OnSaturday.C、Inthreedays.D、Inoneweek.B信息明示题。女士询问包裹能否在自己妹妹过生日那天,也就是周六寄到,由此可知,她妹妹的生日是周六,故选B。
A、Aworthlessburdentobigcities.B、Somethingthatcanbereused.C、Arawmaterialformakingnewproducts.D、Somethingablet
A、Travelalotwhenyoung.B、Bemoreresponsibleforhishome.C、Changetheideaofgettingmarried.D、Madeuphismindtobema
A、Jogging.B、Tennis.C、Cycling.D、Swimming.B综合推断题。男士指出,在体育运动上表现最为活跃的两组人最喜欢的休闲运动是慢跑,接下来是滑雪、打网球、游泳和骑自行车,分析可知排在第三位的是打网球,故选B。
A、ThebestwaytodoYoga.B、Thetypicalprocessofyoga.C、ThemedicalbenefitsofYoga.D、Therelationshipbetweenhealthand
随机试题
在电焊、气割作业时,护目镜的主要作用是防止________损伤眼睛。
铣斜面一般都采用单角铣刀。
(2011年4月)试述《保护文学艺术作品伯尔尼公约》所确立的基本原则。
根据《税收征收管理法》的规定,由税务机关处以不缴或少缴税款50%以上5倍以下罚款的税务违法行为包括()。
通过期货市场相关主体采取措施,可以控制或可以管理的风险被称为( )。
下列各项中,属于经济薪酬的是()。
一般资料:赵某,女,48岁,机关退休干部。案例介绍:赵某大学毕业后进入某机关,个人素质较高,工作能力较强,但人际关系较差,常为一些小事和同事闹得不欢而散,生活中几乎没有知心朋友。还怀疑丈夫有外遇,夫妻关系紧张,看见别人说话,总认为别人说自己坏话,
全面提高开放型经济水平,要
类型修饰符unsigned修饰( )是错误的。
ManyphysiciansintheUSareself-employedprivatephysicians.Anyonewithamedicaldegreecansetupamedicalpracticeint
最新回复
(
0
)