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
考研
【F1】The agricultural sciences deal with the challenges of food and fibre production and processing. They include the technologie
【F1】The agricultural sciences deal with the challenges of food and fibre production and processing. They include the technologie
admin
2016-10-15
31
问题
【F1】
The agricultural sciences deal with the challenges of food and fibre production and processing. They include the technologies of soil cultivation, crop cultivation and harvesting, animal production, and the processing of plant and animal products for human consumption and use.
Food is the most basic human need.【F2】
The domestication and cultivation of plants and animals beginning almost 10,000 years ago were aimed at ensuring that this need was met, and then as now these activities also fit with the relentless human drive to understand and control the Earth ’s biosphere.
Over the last century and a half, many of the world’s political leaders have recognized what India’s Jawaharlal Nehru did, that "Most things except agriculture can wait. " Scientific methods have been applied widely, and the results have revolutionized agricultural production. Under the conditions of prescientific agriculture, in a good harvest year, six people can produce barely enough food for themselves and four others. Advanced technologies have made it possible for one farmer in the United States, for example, to produce food for more than 100 people.【F3】
The farmer has been enabled to increase yields per acre and per animal; reduce losses from diseases, pests, and spoilage; and augment net production by improved processing methods.
Until the 1930s, the benefits of agricultural research derived mostly from labour-saving inventions. Once the yield potentials of the major economic crops were increased through agricultural research, however, crop production per acre increased dramatically.【F4】
Between 1940 and 1980 in the United States, for example, per-acre yields of corn tripled, those of wheat and soybeans doubled, and farm output per hour of farm work increased almost 10-fold as capital was substituted for labour.
【F5】
New techniques of preserving food products made it possible to transport them over greater distances, in turn facilitating adjustments among locations of production and consumption, with further benefits to production efficiency
.
From a global perspective, the international flow of agricultural technology allows for the increase of agricultural productivity in developed and developing countries alike. From 1965 to 1985, for example, world trade in grains tripled, as did net exports from the United States. In fact, by the 1980s more than two-fifths of U. S. crop production was exported, making U. S. agriculture heavily dependent upon international markets.
【F1】
选项
答案
农业科学要解决的是食品和纤维的生产和加工方面的难题。农业科学涉及以下几个方面的技术:土壤耕耘、作物栽培和收获、动物养殖以及对动植物产品加工以满足人类的消费和使用。
解析
转载请注明原文地址:https://jikaoti.com/ti/dNT7FFFM
0
考研英语一
相关试题推荐
Itseemstohappenwithdepressingfrequency—sunnyskiesturntorainjustastheweekendarrives.NowSpanishresearcherssayt
PresidentBarackObamaclaimedprogressWednesdayinhissecond-termdrivetocombatclimatechangebutsaidmoremustbedonet
PresidentBarackObamaclaimedprogressWednesdayinhissecond-termdrivetocombatclimatechangebutsaidmoremustbedonet
"MoneyMattersonCampus"isarecentlyreleasedstudyonfinancialliteracyamongyoungadults.Itsupportsprovidingstudents
"MoneyMattersonCampus"isarecentlyreleasedstudyonfinancialliteracyamongyoungadults.Itsupportsprovidingstudents
Expressionismisanartisticstyleinwhichtheartistseekstodepictnotobjectiverealitybutratherthesubjectiveemotions
Expressionismisanartisticstyleinwhichtheartistseekstodepictnotobjectiverealitybutratherthesubjectiveemotions
WhenNeilArmstrongandBuzzAldrinreturnedfromthemoon,theircargoincludednearlyfiftypoundsofrockandsoil,whichwer
WhenNeilArmstrongandBuzzAldrinreturnedfromthemoon,theircargoincludednearlyfiftypoundsofrockandsoil,whichwer
随机试题
私募基金募集结算资金专用账户主要用于()。Ⅰ.归集私募基金募集结算资金Ⅱ.给付赎回款项Ⅲ.向投资者分配收益Ⅳ.分配基金清算后的剩余基金财产
对犯罪行为造成的物质损失依法负有赔偿责任并被司法机关传唤应诉的一方当事人是
盆腔脓肿的非手术治疗措施不包括
单位工程质量验收记录表中,验收记录和验收结论分别由( )填写。
评估战略的成功标准有()。
下列作品、作家、时代(国别)及体裁对应正确的一项是______。
[配置路由器信息]Currentconfiguration:!version11.3noservicepassword-encryption!hostnamerouter1
在考生文件夹下,打开文档WORD2.DOCX,按照要求完成下列操作并以该文件名(WORD2.DOCX)保存文档。【文档开始】姓名数学外语政治语文平均成绩王立9887898
【B1】【B14】
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotiontoindividualism:"Doyourownthing.""Ididitmywa
最新回复
(
0
)