首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstr
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstr
admin
2016-03-11
32
问题
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstrated that rats will, when given a choice over a period of time , prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement, with a wide selection of baby food before them. They were given whatever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what’s best for them. Apparently, there is a kind of" body wisdom" , which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seem to be greatly influenced by what is going on around them.
In the experiment on rats, a fragrant flavor was added to the rat’s drinking water to( ).
选项
A、encourage rats to drink vitamin-enriched water
B、find out rats preference in flavor
C、test whether rats know which drink is good for them
D、demonstrate that vitamins aretasteless
答案
C
解析
细节题。答案在文章第一段“It has been demonstrated that rats will,when given a choice over a period of time,prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles.”
转载请注明原文地址:https://jikaoti.com/ti/bLfYFFFM
0
成人本科学位英语
相关试题推荐
Liberal(自由)educationisbecomingthetaskofteachers.Itis【C1】______notonlytoteachandlearnknowledge,butalsotodevel
Liberal(自由)educationisbecomingthetaskofteachers.Itis【C1】______notonlytoteachandlearnknowledge,butalsotodevel
Buttherearesignsthattheareaisgettingmoretouriststhanitcanhandle.
Thepatientsufferingfromacoughsoonfound______togiveupsmoking.
A(Whom)B(doyouthink)istheC(most)popularsportsstarD(at)themoment?
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______inthelasttwen-tyyears.Themainchangehasbeen【
—Wheredidthescholarshipofthistermyouhadgotgo,Lucy?—Onacomputer,______onthedeskoverthere.
—It’salovelyday,isn’tit?—Yes.Ilove______whentheweatherislikethis.Whydon’twesitoutsideandhaveourlunch?
Whenitcomestoeatingsmartforyourheart,thinkingaboutshort-termfixesandsimplifylifewithastraightforwardapproac
Guest:Thatwasadeliciousdinner.Host:______.Wouldyouliketogotothelivingroomnow?It’smorecomfortablethere.
随机试题
Theoldtownhasnarrowstreetsandsmallhouses________arebuiltclosetoeachother.
"医乃仁术"主要是指医生在临床诊治工作中,应
其他投资支出的内容有(),为可行性研究购置固定资产的费用;购买或自行开发无形资产的费用,递延资产。
工艺技术建设方案设计提出的()是各公用工程专业进行方案设计的依据。
二氧化碳中毒常为()性中毒。
信用证未规定交单期,出口商交单应在信用证有效期内但不得晚于提单签发日后()。
陈某租住王某的房屋,租赁至2010年8月。王某欠陈某10万元货款,应于2010年7月偿付。至2010年8月,王某尚未清偿货款,但要求收回房屋并请求陈某支付1万元租金,根据《合同法》与担保法律制度的规定。下列关于陈某的权利的表述中。正确的是()。
ComplimentaryDowJonesNewsGetDowJonesReal-TimeNewsforInvestorsatnochargewithyourScottrade,account!It’sthe
社会主义核心价值观的先进性体现在
TheSenatehasanot-to-be-missedopportunityinthenextfewweekstopasslegislationgivingtheFoodandDrugAdministration
最新回复
(
0
)