首页
登录
职称英语
[originaltext] In the old days, fresh food had to be eaten in the city no mo
[originaltext] In the old days, fresh food had to be eaten in the city no mo
游客
2023-08-03
58
管理
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://tihaiku.com/zcyy/2893000.html
相关试题推荐
[originaltext]Allpartsofourbodyage.Andourbraindoestoo.Now,howev
[originaltext]Hello,ladiesandgentlemen.Welcometotoday’slecture.Firs
[originaltext]Hello,ladiesandgentlemen.Welcometotoday’slecture.Firs
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]Readersusingelectronicbooksarelesslikelytoabsorbwhat
[originaltext]Readersusingelectronicbooksarelesslikelytoabsorbwhat
[originaltext]Everyyeararoundnow,tensofthousandsofDVDsofmoviesst
[originaltext]Everyyeararoundnow,tensofthousandsofDVDsofmoviesst
[originaltext]Everyyeararoundnow,tensofthousandsofDVDsofmoviesst
随机试题
GLIB:A、pugnaciousB、gleefulC、guilelessD、punctiliousE、flippantC
AtthebeginningMissEyre’simpressionsofMr.RochesterwereallEXCEPT______
CarolineMan,asixth-formstudentattheSouthIslandSchool,isbecomingf
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetic
(71)Evidencefrommanyancientsocieties--Chinese,Greek,Mayan,andEgyptian
TheBushadministrationisgivingpublicschooldistrictsbroadnewlatitude
女性,39岁,半年前因肛旁脓肿切开引流,之后局部皮肤反复红肿,破溃,局部痒,应考
治疗鼻衄热邪犯肺证的最佳选方是( )。A.银翘散 B.沙参麦冬汤 C.泻白
治疗反复发作的原发性肾病综合征,婴儿的药物是()。A.强的松 B.青霉素
(2016年真题)涂料涂覆工艺中电泳涂装的主要特点有()。A.使用于水溶性
最新回复
(
0
)