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
42
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
Whatisthetopicofthispassage?[originaltext]Doyouunderstandwhatin
运营隧道结构检查是隧道运营管理中的一项重要工作,通过结构检查,了解隧道土建结构技
《幼儿园教师专业标准(试行)》的基本理念是:__________为本,_____
2020年全国农民工总量28560万人,下降1.8%,其中,外出农民工16959
儿童用品,是指预定供14岁以下儿童玩耍或使用的任何产品。 根据上述定义,下列属
库存控制要解决的两个根本问题是()。A:什么时候订购 B:在什么地点订购 C
会员对交易结算结果有异议的,应在下一交易日开始前30分钟以书面形式通知交易所。遇
下列挡土墙结构类型中,受地基承载力限制最大的是()。A.重力式挡土墙 B.加
婴儿出生体重3.5kg,生后吃奶好,现体重仍为3.5kg。生理性体重下降的范围是
最新回复
(
0
)