首页
登录
职称英语
[originaltext] Rats are the enemy of human beings. They eat or spoil crops o
[originaltext] Rats are the enemy of human beings. They eat or spoil crops o
游客
2023-07-24
88
管理
问题
Rats are the enemy of human beings. They eat or spoil crops of grain and rice be fore they can be harvested, or while they are in storage. In India, where millions of people go hungry, there are ten times as many rats as people. Rats devour half of the available food. Rats will also attack birds and animals, from frogs and chicks to geese and young calves. They have even destroyed dams and buildings by making holes through or under them, and have started fires by chewing on electrical wiring.
The most terrible destruction caused by rats, however. has come from the diseases they carry. In the fourteenth century, rats caused the death of one-third of the world’s population by transmitting the dreadful Black Plague that reined Europe.
Ironically, it is in fighting diseases that rats have been most useful to humanity. Thousands of specially bred rats are used in research laboratories every year to test medicines which can possibly be used to prolong and improve human life. Some laboratory rats are even used to test new methods of eliminating their cousins, the wild rats.
选项
A、They eat or spoil crops.
B、They destroy dams and buildings.
C、They attack birds and animals.
D、They carry diseases.
答案
D
解析
信息明示题。文章提到 The most terrible destruction caused by rats…has come from the diseases they carry,即老鼠带来最可怕的危害是它们传播疾病,故选D。
转载请注明原文地址:http://tihaiku.com/zcyy/2865086.html
相关试题推荐
[originaltext]Untilthetwentiethcenturycigaretteswerenotanimportant
[originaltext]Untilthetwentiethcenturycigaretteswerenotanimportant
[originaltext]Technically,anysubstanceotherthanfoodthataltersourbo
[originaltext]M:Goodmorning,canIhelpyou?W:Yes,goodmorning,I’vejust
[originaltext]M:Goodmorning,canIhelpyou?W:Yes,goodmorning,I’vejust
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
随机试题
TypesofMoneyThefunctionsofmoneyasamediumofexcha
Alloverthecountrythesedays,electronicmailmessagesare【B1】______with
WhichofthefollowingsentencesisINCORRECT?A、Twentymilesseemslikealongw
简述运输需求的特征。
常见的给水系统有()。A.直接给水方式 B.单设水箱给水方式 C.设水泵给
在一般临床实验室,测定β-TG和PF的方法是A.ELISA法 B.免疫电泳法
新生儿,男,生后3天。皮肤、巩膜出现黄染,精神、食欲尚好,大便黄色糊状,查血清胆
对材料进行自我提问属于元认知策略。 ()
沥青路面按组成结构分类中,密实-骨架结构的典型是( )。A.SMA B.AC
妊娠14周,行钳刮术时破膜后突然烦躁、寒战、咳嗽、呼吸心率加快,血压轻度下降,应
最新回复
(
0
)