首页
登录
职称英语
[originaltext] One way that scientists learn about man is by animals, such a
[originaltext] One way that scientists learn about man is by animals, such a
游客
2023-08-30
32
管理
问题
One way that scientists learn about man is by animals, such as mice, rats and monkeys. The scientists in this laboratory are experimenting on mice. They are studying the relationship between diet and health. At this time over one hundred experiments are going on in this laboratory.
In this experiment, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Also they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years. The second group of mice is normal weight. They are healthy, too. They are active, but not as active as the thinner mice. But they are only living about two years. The last group of mice spends most of the day eating or sleeping. They are not very active. These mice are living longer than the scientists thought: about a year and a half. But they are not healthy. The experiment is still going on. The scientists hope to finish their studies in two years.
选项
A、Mice.
B、Rats.
C、Monkeys.
D、A, B and C.
答案
D
解析
According to the passage, what animals are often used by scientists to learn about man?
转载请注明原文地址:https://tihaiku.com/zcyy/2970264.html
相关试题推荐
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]Ifyouseizethestemofanettle(荨麻)firmly,perhapswitht
[originaltext]Ifyouseizethestemofanettle(荨麻)firmly,perhapswitht
[originaltext]M:Morning.Happytomeetyouhere.Howareyouandhowisyourw
[originaltext]W:Oh,hi,Daniel.(19)Areyougoingtothein-servicegainingt
[originaltext]W:Oh,hi,Daniel.(19)Areyougoingtothein-servicegainingt
[originaltext]BillGateswasborninSeattle,Washingtonin1955.Heco-fou
[originaltext]BillGateswasborninSeattle,Washingtonin1955.Heco-fou
随机试题
Educatorstodayaremoreandmoreoftenheardtosaythatcomputerliteracyi
EndangeredPeoplesA)Today,itisnotdistance,butcult
Itcanneverbeproved,butitisasafeassumptionthatthefirsttimefiv
WhywasthemanintheStudentUnionOffice?[br][originaltext]W:Hi,Stan,wh
经济增长是指实际产量的增加,通常用不变价格下的()的增长来测量。A.自发投资
我国公民基本道德规范:爱国守法,明礼诚信,团结友善,勤俭自强,_______。
下列不属于建设工程合同的是()。A、勘察合同 B、工程监理合同 C、设计
Thechangeinthatvillagewasmiraculou
突然昏仆,并伴有口眼斜、偏瘫等症,神昏时间较长,苏醒后有偏瘫、口眼斜及失语等
羊水过少是指妊娠晚期羊水量少于A.500ml B.200ml C.300ml
最新回复
(
0
)