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
According to the passage, why are the chemicals used in agriculture safe?
According to the passage, why are the chemicals used in agriculture safe?
admin
2014-04-25
62
问题
According to the passage, why are the chemicals used in agriculture safe?
People today are so concerned with trying to conserve the planet’s resources that they sometimes devote their energy towards impractical changes without considering the consequences. The issue of organic foods, those foods grown without the use of chemical fertilizers or pesticides, is an excellent example of this issue. Advocates of organic foods have suggested that the chemicals used in agriculture are damaging the natural environment. Because of the images created by the advocates of organic foods, many people now believe that the long-term use of chemical fertilizers poisons the soil. In fact, chemical fertilizers have been used on the land since the earliest days of European settlement with excellent results. The United States was founded by men who worked in agricultural chemicals. John Winthrop, one of the organizers of the Connecticut colonies, built a company for the manufacture of potassium nitrate fertilizers thirty years before the American Revolution was even started. Such chemicals were essential in creating the miraculous growth in American a-griculture that led to the prosperity of the young nation. Ever since that time, chemicals have played an important role on farms across the nation. If we followed the advice of the organic foods advocates, we would undoubtedly have less chemicals in our food, but we would also have less food on our tables.
选项
A、They have never been proven harmful before.
B、They produce larger crops.
C、They have a long history.
D、They are subject to high standards.
答案
C
解析
细节题。作者在文中多次强调使用化学肥料并不会毒害土地,他说自从欧洲移民在美国定居就已经开始在这片土地上使用化学肥料了,并取得了非常好的效果,故可以证明其是无害的,所以C选项是正确的。
转载请注明原文地址:https://kaotiyun.com/show/M0UK777K
0
专业英语四级
相关试题推荐
Accordingtothepassage,intensenoisepollutionmayNOTcause______.
AmericanhopesthatpressurefromtheUSwillforceJapantosuddenlydismantleitstradebarriersarealmostcertaintoevapora
WriteonyourANSWERSHEETONEacompositionofabout200wordsonthefollowingtopic.YouaregoingtograduatefromUnive
Theteachertoldthestudentstostayintheclassroomandtheydid______.
______badlyhehadslept;hewasalwaysupearly.
WhatisthemainpurposeofancientOlympicGames?
What’sthepossiblerelationshipbetweenthetwospeakers?
Whatisthemainpurposeofthepassageyouhavejustheard?
Whatarethetwospeakersmainlytalkingabout?
Whatismostprobablythewomandoingatthebeginningoftheconversation?
随机试题
加强党的制度建设的重点是()。
艾宾浩斯遗忘曲线表明遗忘的规律是先快后慢,该曲线图的横坐标代表时间,纵坐标代表______。
灰质
肺脓肿急性化脓性炎症阶段,X线表现为
关于行政强制执行协议,正确的有()。
如果奇函数f(x)在区间[3,7]上是增函数且最大值为5,则f(x)在区间[-7,-3]上是()。
一批树苗,如果分给男女生共同栽,平均每人栽6棵;如果只分给女生栽,平均每人栽10棵。如果只分给男生栽,平均每人栽()棵。
1956年是我国历史发生重要转变的一年。这一年,从国际上看,西方国家全面对华封锁遏制的局面有所松动,中国的和平外交政策初见成效,新的侵华战争和新的世界大战,短时期内打不起来,这为国内和平建设提供了保证。在国内,社会主义改造基本完成,社会主义的经济制度和政治
使角VC6打开考生文件夹下的源程序文件modi2.cpp。请完成函数fun(intx),该函数功能是将x的值转换成三进制数输出到屏幕,并且在函数中调用写函数WriteFile()将结果输出到mod12.txt文件中。例如:x=13,13的二
A、Thequickeritvibrates,thegreaterthefrequencyofsounditproduces.B、Thesloweritvibrates,thehigherthefrequencyof
最新回复
(
0
)