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
14
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
MINUTESOFTHEMEETINGHELDINCONFERENCEROOMNO.8
下列关于火灾自动报警系统布线的做法中,错误的是()。A.火灾自动报警系统单
月经中期正反馈作用于下丘脑—垂体系统的激素为:()A.雌激素 B.
某市财政局坚持“市场挑梁”和“财政引路”相结合,狠抓供给侧结构性改革。市财政出资
无领导小组讨论题目设计的一般流程包括:①向专家咨询;②编写初稿;③调查可用性;④
下列关于贷款分类中“次级”的说法,正确的是()。A.借款人从事固有风险很大的行业
某工业企业(增值税一般纳税人)2021年3月1日转让其位于县城的一栋自建的办公楼
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
张拉锚固后,建立在锚下的实际有效预应力与设计张拉控制应力的相对偏差应不超过(
工程质量监督申报手续应在工程项目()到工程质量监督机构办理。A.开工前,由
最新回复
(
0
)