首页
登录
职称英语
hat is the percentage of the sugar used as food? [br] [originaltext] Sugar
hat is the percentage of the sugar used as food? [br] [originaltext] Sugar
游客
2023-11-13
38
管理
问题
hat is the percentage of the sugar used as food? [br]
Sugar is so much a part of our modem life that we only really think about it when, for some reason, we cannot obtain it. It has been known to man for at least 3,000 years, but has come into common use only in modem times. Until quite recently it was considered as a medicine and as a luxury for the very rich only.
Sugar is, then, very important to our civilization. But what exactly is it? Of course, most of us recognize sugar immediately as the sweet material that we put in coffee or cakes. This common form of sugar is derived from two plants: the sugar cane( a type of grass which grows to a height of twenty feet) and the sugar beet (which grows underground). But there are in fact many types of sugar, and the chemist recognizes hundreds of different varieties, each coming from a different source.
About 90% of the sugar produced as food. Only 10% is used in industry for purposes other than food production. Yet sugar has great possibilities for use as the basis of chemicals. It can even be used for making plastics. In the future these potential uses will certainly be developed more than in the past.
There are many reasons why we should increase the production of sugar. Most important is that it is one of the most highly concentrated of energy foods. Thus sugar cane and beet produce an average of 7,000,000 calories per acre. In this way they have the advantage over potatoes, which give only 4,000,000, while figure for wheat and beans, is 2,000,000 each. So three acres of land growing wheat and potatoes give only slightly more energy than one acre of sugar.
选项
A、It tastes sweet.
B、We can save plenty of land.
C、We can get more energy.
D、It is one of the most highly concentrated of energy food.
答案
D
解析
“There are many reasons why we should increase the production of sugar.Most important is that it is one of the most highly concentrated of energy foods.”,答案不用赘述。
转载请注明原文地址:https://tihaiku.com/zcyy/3183579.html
相关试题推荐
Whereisthepresenceofsecuritypatrolsmostevident?[br][originaltext]
WhydidthesingersmeetinHollywood?[br][originaltext]Dozensofrecordi
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
WhatisJiminterestedin?[br][originaltext](M=Jim,F=Linda)M:Hello,Li
JohnhasworkedinallofthefollowingplacesEXCEPT______.[br][originaltext
JohnhasworkedinallofthefollowingplacesEXCEPT______.[originaltext](M=
WhichofthestatementsabouttheautoshowisINCORRECT?[br][originaltext]F:
WhichofthestatementsabouttheautoshowisINCORRECT?[br][originaltext]F:
WhichofthestatementsabouttheautoshowisINCORRECT?[originaltext]F:Good
What’stheseriousproblemthedevelopingcountriesface?[originaltext]OnW
随机试题
Thefirst50yearsofthenextmillenniumwillbecriticalfortheworld’sp
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeatin
[originaltext]Host:Welcomehacktoourseriesaboutissuesthataffectchildre
[originaltext]Ourenvironmentisbeingpollutedfasterthannatureandman’
Forthispart,youareallowed30minutestowriteanessayonthetopicfre
超声检查技术。
下列选项中应在工程设计阶段编制的是()。A:工程概算 B:投资估算 C:工
关于细集料筛分试验的描述正确的是()。A.干筛法试验过程中,所有各筛的分计筛余量
患者,女性,35岁,因面部出现蝶形红斑,尿蛋白阳性入院就诊。若T细胞亚群和ANA
(2020年真题)甲公司有一基本生产车间,对外承接工业型加工服务,按照客户订单组
最新回复
(
0
)