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
46
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
建筑平面图表达的内容有()。A.建筑物的形状和朝向 B.内部功能布置和各种房
下列关于最后贷款人制度的说法,不正确的有()。A.中央银行是承担最后贷款人角
在幼儿教育中,良好的师生关系的特点及其建立。
不属于牛蒡子别名的是A.牛子B.鼠黏子C.大力子D.丑宝E.恶实
下列说法正确的是A.抗代谢药最早用于临床抗肿瘤 B.芳香氮芥比脂肪氮芥毒性大
休克严重而血尿不明显的肾损伤是A:肾全层裂伤 B:肾部分裂伤 C:肾蒂损伤
产后出血的概念是指胎儿娩出后,24小时内阴道出血量超过A.300ml B.40
空运∶海运∶运输A.平装∶精装∶装帧 B.货轮∶客轮∶邮轮 C.晚会∶聚会∶
变压器短路阻抗选择一般不考虑()。A.中性点接地方式;B.系统短路容量;
依据《突发公共卫生事件应急条例》的规定,建立重大、紧急疫情信息报告系统的机构是A
最新回复
(
0
)