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
2023-07-15
94
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 ac tire. These mice are living longer than the scientists thought: about a year and a hell 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:http://tihaiku.com/zcyy/2840513.html
相关试题推荐
[originaltext]Theaveragefamilyspendsaboutonesixthofitsincomeonfo
[originaltext]W:(22)So,whoaresomeofthepeoplefightingtoprotecttheset
[originaltext]W:(22)So,whoaresomeofthepeoplefightingtoprotecttheset
[originaltext]W:(22)So,whoaresomeofthepeoplefightingtoprotecttheset
[originaltext]M:Hello,Jenny,youlooksotired.Howdidyouspendyourweeken
[originaltext]M:Hello,Jenny,youlooksotired.Howdidyouspendyourweeken
[originaltext]Whenitcomestofindingajob,whoyouknowisasimportant
[originaltext]Whenitcomestofindingajob,whoyouknowisasimportant
[originaltext]M:Soyouareatranslator?W:No,I’maninterpreter.M:What’s
[originaltext]M:Soyouareatranslator?W:No,I’maninterpreter.M:What’s
随机试题
_______theAtlanticOceancrossestheequator,thetradewindscauseaflowof
Combustionproduces______heat.A、andlightofB、bothlightandC、lightalsoD、as
【B1】[br]【B6】A、naturalB、worldC、socialD、humanD本题考查形容词辨义。human表示“人类的,人的”,the
患儿2岁半,病初2天有轻微咳嗽,随后出现高热,体温达40℃,烦躁,频繁呕吐,查体
其性燔灼趋上的邪气是()A.风邪 B.寒邪 C.暑邪 D.湿邪 E
()适用于中央、国家机关、省级政府等用于宏观决策和社会公益事业。A:甲类使用许可
共用题干 TheArcticIceisThawingFatherCh
上海前和律师事务所商建刚律师表示,网友对其在网站上发表的帖子具有著作权,如果其在
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
某换填工程,工期紧、换填面积广、淤泥层较厚且稠度大,该工程最适合采用的换填方法是
最新回复
(
0
)