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
2024-02-25
37
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.
The clogs 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 dongs. 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 drag-sniffing dog is different from that given to a bomb-sniffing dog. A drug-sniffing dog is trained to scratch and dig for the drags when he sniffs them. A bomb-sniffing dog sits down when he finds a bomb. That is the alert for hidden explosives.
选项
A、11-week course for control duty.
B、11-week course for patrol duty.
C、9-week course for control duty.
D、9-week course for patrol duty.
答案
B
解析
信息明示题。文章提到狗的第一个训练阶段是an 11-week course for patrol duty,所以B正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3481762.html
相关试题推荐
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
[originaltext]Quiet,please.MayIhaveallofyourattention?Weneedtog
[originaltext]Quiet,please.MayIhaveallofyourattention?Weneedtog
[originaltext]W:I’mtiredofwatchingtelevision.Let’sgotothemoviestonig
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]M:That’sanawfullyheavysweaterforadayliketoday.W:Well,
随机试题
Cricket,althoughlovedbymillionsofpeople,isnotoneoftheeasiestspo
某旅游企业为了获得更大的收益,决定进军家居行业,该企业采取的战略是()。A.相
设x为一个总体且E(x)=k,D(x)=1,X1,X2,…,xn为来自总体的简单
以下水准仪中哪一种型号的精度最高()。A.DS10 B.DS3 C.DS0
根据《普通高中美术课程标准(实验)》,不属于高中美术课程性质的是()。A.理
根据现行《合同法》规定,合同是()。 A平等主体的自然人、法人、其他
某游戏比赛决赛采用BO5赛制,即五局三胜制,根据以往经验,单局比赛R队胜F队的概
期货公司变更住所,应当提交的申请材料包括(??)。A.变更住所申请书 B.
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
各级政府及其所属部门根据法律、行政法规等规定,为支持某项特定基础设施建设和社会公
最新回复
(
0
)