首页
登录
职称英语
[originaltext] The dog has often been an unselfish friend to man. It is alwa
[originaltext] The dog has often been an unselfish friend to man. It is alwa
游客
2024-02-14
16
管理
问题
The dog has often been an unselfish friend to man. It is always grateful to its master. It helps man in many ways. Certain breeds of dogs are used in criminal investigations. They are trained to sniff out drugs and bombs. They help police to catch criminals. Some dogs are trained to lead blind people.
The dogs that help in criminal investigations are trained at a school called the Military Dog Studies Branch of the US Air Force in Lackland, Texas. The dogs to be trained are selected by an air force team. This team visits large cities across the country to buy the dogs. They may buy dogs from private citizens for up to $750 each. Some citizens freely give their dogs. The dogs selected must be healthy, brave and aggressive. They must be able to fight back if they are attacked. The dogs chosen are between the ages of one and three. They are given a medical examination when they arrive at the school. Their physical examination includes X-rays and heart tests.
The trainee dogs undergo the first stage of training when they arrive in Lackland. This is an 11-week course for patrol duty. After this course, the best dogs are selected to go on another 9-week course. They learn drug sniffing or bomb sniffing. After this course, the dogs are ready for their jobs in the cities or on air force bases.
The training given to a drug-sniffing dog is different from that given to a bomb-sniffing dog. A drug-sniffing dog is trained to scratch and dig for the drugs when he sniffs them. A bomb-sniffing dog sits down when he finds a bomb. That is the alert for hidden explosives.
Questions 29 to 31 are based on the passage you have just heard.
29. How are the dogs obtained for training?
30. What is the first stage of training for the dogs?
31. What do the dogs learn during the 9-week training?
选项
A、Given by the local government.
B、Born by a large number of bitches.
C、Bought from different cities.
D、Captured over grassland.
答案
C
解析
短文中提到This team visits large cities across the country to buy the dogs表明,这种狗是从不同的城市购买来的,故答案为[C]。
转载请注明原文地址:https://tihaiku.com/zcyy/3450617.html
相关试题推荐
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Inthepasttwoyears,millionsofAmericanshavesuddenlyem
[originaltext]M:Hello,Mrs.Kelly.I’dliketopickupmytest,please.W:Sur
[originaltext]M:Hello,Mrs.Kelly.I’dliketopickupmytest,please.W:Sur
[originaltext]M:Hello,Mrs.Kelly.I’dliketopickupmytest,please.W:Sur
[originaltext]W:Hello.WorldwideFlowers.Ms.Hartisspeaking.M:ThisisJoh
[originaltext]W:Hello.WorldwideFlowers.Ms.Hartisspeaking.M:ThisisJoh
[originaltext]Myparentsranasmallrestaurant.Therestaurantwasopened
[originaltext]Myparentsranasmallrestaurant.Therestaurantwasopened
[originaltext]Myparentsranasmallrestaurant.Therestaurantwasopened
随机试题
Fishareanimalsthatliveinwater.Theyliveinalmostanyplace【B1】______
Individualism,independence,andself-relianceareperhapsthemostdistinct
GivetheSenatesomecredit:inshapingthecurrentimmigration-reformbill,
[originaltext]M:Look!It’srainingcatsanddogs.Sometimestheweatherforeca
二阶电路过渡过程的性质取决于电路元件的参数,当电路出现非振荡过程的过阻尼状态时,
卫生间的轻质隔墙底部应做C20混凝土导墙,其高度不应小于()。A.100mm
如果高等学校能够大量聘用在海外一流大学获得博士学位的毕业生,无疑将有助于提升教学
温经汤中配伍半夏的主要用意是A和胃降逆而止呕 B通降胃气而散结 C降逆散结而
方程的通解为()。
下列选项中不属于基于移动智能网可提供移动智能业务的一项是()。A.移动预付费业务
最新回复
(
0
)