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
专升本
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become st
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become st
admin
2015-05-14
33
问题
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become strong and healthy. Some kinds of bacteria need air, but other kinds grow only when air is absent. Extremes of temperature, either hot or cold, can kill bacteria.
Before electric ice-boxes were invented, freezing and cooling were limited by the cold climate. In warmer regions, food was cooled by putting it in the shade, in cold water from the well, or in pits(坑)in the ground.
Cooking will usually kill bacteria if the temperature is high enough and the high temperature lasts long enough. Certain methods of cooking remove water, and this aids in preserving food. Drying is the oldest and most common method of preserving food. Food can be dried by the sun, by heat or by combination of the two.
Salt was used by many hunting people. When people began to eat vegetables, salt became a needed part of their life. Salt helps to preserve food because it slows or stops bacteria to grow. Other chemicals besides salt are used in preserving food. Some people oppose the use of chemicals in food. They say that these chemicals may harm people if the chemicals can harm bacteria.
The method of salting food______.
选项
A、was not used in the past
B、involves the use of chemicals
C、is not liked by most people
D、is no longer used by hunter
答案
B
解析
根据题干中的salting food定位到文章末段第三、四句。由“Other chemicalsbesides salt are used in preserving food.”可知,用盐腌法保存食物时会使用一些化学物质。答案为B。
转载请注明原文地址:https://kaotiyun.com/show/hsTC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
DoctorFriedlandsaidthestudyalsoshowsthereisnoreasontopunishAIDSpatientsandtoforcethemtoliveseparatelyfrom
Wehadconductedhundredsofexperiments______wefinallyachievedthedesirableresult.
______collegestudentsshouldlearnmoreaboutChinesehistory.
I’dliketorentahouse,modern,comfortableand______inaquietandsafeneighborhood.
TheIraqiWarmadethousandsofchildren______(home).
Thegirlhasobtainedherparents’______(permit)togocampingthisSunday.
OnthemorningofNovember18,1755,anearthquakeshookBoston,Massachusetts.JohnWinthrop,aprofessoratHarvardCollege,【3
(2009)Inexperiencedasheis,hehassucceeded______otherexperiencedresearchersfail.
Alanguageisasignalingsystemwhichoperateswithsymbolicvocalsounds(语声),andwhichisusedbyagroupofpeopleforthep
Thelastfewyearshaveseennewwealthinthegroupofwhite-collarworkersinChina.Primarilythisgroupconsistsoflawyers,
随机试题
以下关于胰腺大小测量的说法,错误的是
钢筋图中的符号,“φ”表示的是()钢筋。
Thenegotiatingbankhashadsomeproblem()whethertopayornot.
自然人王某、甲上市公司和乙国有独资公司拟设立A有限合伙企业。根据规定,下列有关说法中,不符合规定的是()。
根据以下图形的规律,问号处应填入的是()。
从本质上看,国际信用是()的一种形式。
2011年8月,丁某购买了一套价值70万元的商品房用于结婚。该商品房的原所有权人为6周岁的小峰。为筹集购房款,丁某以房屋作抵押向高某借了20万元,双方未约定借款的利息。丁某的朋友李某也答应在8月底前借给他10万元。但直到9月初,李某仍未提供借款。在李某
下列送别诗句中不属于描写目送友人场景的是:
据报道,台湾制造的笔记本电脑在全球市场占有率将从去年的34%上升到今年的45%。由此可见()
Whydon’tbirdsgetlostontheirlongflightsfromoneplacetoanother?Scientistshavepuzzledoverthisquestionformanyye
最新回复
(
0
)