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
2024-02-08
36
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 U.S. 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 19 to 21 are based on the passage you have just heard.
19. How are the dogs obtained for training?
20. What is the first stage of training for the dogs?
21. What do the dogs learn during the 9-week training?
选项
A、Catching runaway criminals.
B、Scratching the hidden bombs.
C、Patrolling the dangerous town.
D、Drug sniffing or bomb sniffing.
答案
D
解析
选项表明,本题可能考查训练项目。短文中明确提到they learn drug sniffing or bomb sniffing,故答案为D)。
转载请注明原文地址:https://tihaiku.com/zcyy/3431492.html
相关试题推荐
[originaltext]TheBritishIslescanbedividedintotwo,notonlybecauseo
[originaltext]TheBritishIslescanbedividedintotwo,notonlybecauseo
[originaltext]TheBritishIslescanbedividedintotwo,notonlybecauseo
[originaltext]Coffeeisthemostpopulardrinkaroundtheworld.Canyougu
[originaltext]Nobodylikesacomputervirus,butatleastyoucangetrido
[originaltext]Nobodylikesacomputervirus,butatleastyoucangetrido
[originaltext]Nobodylikesacomputervirus,butatleastyoucangetrido
[originaltext]M:OurnextcallerisAstridHeiner,whohasatranslationagency
[originaltext]M:OurnextcallerisAstridHeiner,whohasatranslationagency
[originaltext]W:Iamgoingtotellthatneighborofminetoturndownthatmus
随机试题
[originaltext]Whosubmittedthelowestbidfortheconstructionproject?(A)T
Fewpeoplewouldeverthinkofbeginninganewjobwhentheyareold,butAn
A.顺时针转动 B.逆时针转动 C.无转动 D.不能确定
冷原子吸收法测定汞时,对253.7nm波长有吸收能力的是A.一价的低汞原子 B
月经先期脾气虚证,治疗应首选A:补中益气汤 B:固阴煎 C:清经散 D:两
胸脘痞闷,按之则痛,舌苔黄腻,脉滑数,治宜选用A.小陷胸汤B.保和丸C.健脾丸D
蓄电池工况正常,巡检设备误报警,影响正常巡视,缺陷性质为一般。
下列筹资方式中,融得的是物而不是资金的是()。A.发行股票 B.利用商业信用
论述法律程序的特征。
案例十一: 下面是某求助者MMPI-2的测验结果: 轻躁狂量表的
最新回复
(
0
)