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
A、Drying the food. B、Heating the food. C、Cooling the food. D、Putting the food in the water. DWhich of the following ways is not
A、Drying the food. B、Heating the food. C、Cooling the food. D、Putting the food in the water. DWhich of the following ways is not
admin
2009-04-23
60
问题
In the old days, fresh food had to be eaten in the city no more than one or two days after it left the farm. If kept longer, it would spoil. One of the reasons behind it is that the air contains many living things that can harm our food. Some things, such as insects, can be seen by us. Others, like bacteria, can be seen only with a microscope.
All living things need water and man discovered that if this water is removed, the activity of the bacteria which causes food to go bad is prevented. In other words, we can protect some of our food by drying it. Besides, living things can only grow at certain temperatures, so we can also protect our food by heating or cooling it.
A New York man had an idea. He filled a wooden railroad car with tons of butter. The car was hooked to a train and pulled from New York to Boston. How could this be done? The butter was packed in ice, and twice during the trip more ice was added. This was the first refrigerator ear. As a matter of fact, People also used wooden boxes filled with ice to keep their food. Now we have mechanical refrigerator cars and mechanical refrigerators at home and stores and other places that need them.
选项
A、Drying the food.
B、Heating the food.
C、Cooling the food.
D、Putting the food in the water.
答案
D
解析
Which of the following ways is not mentioned as a way to protect food?
转载请注明原文地址:https://kaotiyun.com/show/HsC7777K
0
大学英语四级
相关试题推荐
A、HelearnedalotfromhisstudyinEngland.B、Helearnedmanyforeignlanguagesinhiscollege.C、Hewassatisfiedwithhised
Forthispart,youareallowed30minutestowriteashortessayonstressmanagement.Youressayshouldincludetheimportance
A、Havingagoodstarteveryday.B、Havingstrongself-confidence.C、Havingasenseofdirection.D、Havingspecialistknowledge.
A、Byputtingitintoatankfullofthefish.B、Byremote-controllingittoattackthefish.C、Byshowingitthousandsofimages
A、StudyinginaforeignenvironmentB、Livingfarawayfromfamily.C、Returningbacktohomecountry.D、Fittingintoaforeigncu
A、Theprotectionofnationalparks.B、Thehistoryofnationalparks.C、Theserviceofnationalparks.D、Thepollutionofnationa
Widespreadadoptionofplug-inelectricvehiclescoulddramaticallycutgreenhousegaspollutionandreduceU.S.dependenceonf
A、Herparents’guidance.B、Alivedanceshow.C、Avideoofprominentdancers.D、Adancingcoursesheattended.B对话中,男士问女士是什么激发了她
A、Collectinginformationabouttheweather.B、Seeingthroughthecloudsdowntothesurfaceofthesea.C、Pickingupdifferences
A、Shewasn’tawareofthedangersthere.B、Drivingintownwasdangerous.C、Itwasveryniceandsafe.D、Itwashorrible.A
随机试题
A.5~10minB.10~15minC.30minD.30~40minE.3小时以上解表药第一煎的时间是沸后
某法院在审理张某自诉伤害案中,发现被告人还实施过抢劫。对此,下列哪一做法是正确的?
王红亲眼目睹了三个盗窃犯实施盗窃及当场被公安机关抓获的过程。事后,侦查人员找到王红取证。对此,下列说法正确的是()
常用的各种会计核算程序,它们在()方面有共同之处。
实现人民当家作主和依法治国的根本保证是坚持中国共产党的领导。()
对公务员违纪行为给予行政处分的种类有()。
一次投掷两颗骰子,出现的点数之和为奇数的概率是__________________.
在考生目录下有一个工程文件sit5.vbp。窗体中已经给出了所有控件(如图3—82所示)。请编写适当的事件过程完成以下功能:单击“读数”按钮,则把考生目录下的in5.txt文件中的一个整数放入Text1;单击“计算”按钮,.则计算出大于该数的第一个素数,并
TheroleofwomeninBritainhaschangedalotinthiscentury,【C1】______inthelasttwentyyears.Themainchangehasbeen【C2】_
A、Lonelinesscanleadtomanydiseases.B、Lonelinesscanspreadthroughsocialgroups.C、Lonelinessisrelatedtoone’ssocials
最新回复
(
0
)