首页
登录
职称英语
Let us consider what science and technology have to contribute to the food
Let us consider what science and technology have to contribute to the food
游客
2023-11-21
65
管理
问题
Let us consider what science and technology have to contribute to the food problem.
The simplest way to increase food production, one might suppose, is to bring more land 【C1】______ cultivation and put more people to work on it. Some of the underdeveloped countries have resorted to this 【C2】______ approach, without notable success. It contains several fallacies. For one thing, it usually means 【C3】______ into marginal lands where the soil and climatic conditions give a poor 【C4】______ . Cultivation may quickly deplete this soil,【C5】______ it for pasture or forest growth. It is often possible, of course, to turn such lands into useful farms by agricultural 【C6】______ ; for instance, a sophisticated knowledge of how to use the available water【C7】______ an irrigation system may reclaim semi-arid grasslands for crop-growing. But the cultivation of marginal lands i6 in any case unsuccessful【C8】______ it is carried out by farmers with a centuries - old tradition of experience or by modern ex pelts with a detailed knowledge of the【C9】______ conditions and the varieties of crops that are suitable for those conditions. Such knowledge is【C10】______ absent in the underdeveloped countries.
【C11】______ , we know that highly developed countries have not increased the【C12】______ of acres under cultivation, 【C13】______ on the contrary have 【C14】______ their marginal lands and steadily reduced the proportion of the population engaged in farming. Efficient farming【C15】______ concentration on the most efficient lands, and it results in greater production with【C16】______ people. The problem of the underdeveloped countries, then is to increase the【C17】______ of their farms and farmers. This would allow them to industrialize and to feed their people more adequately. It is not easy to【C18】______ , how ever. The farmers are conservative and resistant to change【C19】______ their methods of cultivation. The underdeveloped countries are greatly in need of studies and experiments to help them to【C20】______ modern agricultural methods to their own conditions. [br] 【C17】
选项
A、criterion
B、sake
C、productivity
D、treatment
答案
C
解析
此题考查名词词义。根据题干,A项criterion“标准”、B项sake“缘故”和D项treatment“处理”都不适合此句。C项productivity意为“产量;生产力”,符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3206350.html
相关试题推荐
Everyprofessionortrade,everyartandeverysciencehasitstechnicalvoc
TechnologyoftheIntellectualLifeItiscuri
TechnologyoftheIntellectualLifeItiscuri
TechnologyoftheIntellectualLifeItiscuri
Whytheinductiveandmathematicalsciences,aftertheirfirstrapiddevelo
Itisacuriousparadoxthatwethinkofthephysicalsciencesas"hard",
Itisacuriousparadoxthatwethinkofthephysicalsciencesas"hard",
Almosteveryoneconsiders______adietsometimeinhisorherlife.A、goingonB、
Advanceinsciencemoreoftenthannotencounterspowerfulopposition,______Dar
Beingconsideredaleaderinoursocietyistheultimatecompliment."Leade
随机试题
Completethenotesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.[img]2
Fromtheevolutionarypointofview,______.[br]Thetoneofthepassagecanbe
[originaltext]KennyEnjoysDrivingaTaxiInterviewer:W
Friendshipisbothasourceof【B1】______andgoodhealth.Peoplewhohavecl
下面属于企业识别外部风险的是()。A.组织机构 B.财务状况 C.产业政
既耐严寒又耐高温的优质嵌缝材料是( )。A.聚氯乙烯胶泥 B.硅橡胶 C.
A.一般支持疗法 B.子宫托 C.阴道纵隔形成术 D.中药治疗 E.经阴
关于上海证券交易所的配股操作流程(T日为股权登记日),下列表述正确的有(
63.试验用闸刀应有熔丝并带罩,被检修设备及试验仪器禁止从()上直接取试
下列不属于其他直接费的是()。A.企业管理费 B.特殊地区施工增加费 C.
最新回复
(
0
)