首页
登录
职称英语
Agriculture is undoubtedly the most important sector in the economies of m
Agriculture is undoubtedly the most important sector in the economies of m
游客
2024-05-11
21
管理
问题
Agriculture is undoubtedly the most important sector in the economies of most non-oil exporting African countries. It【C1】______ about 30% of Africa’s GDP and contributes【C2】______ 50% of the total export value,【C3】______ 70% of the continent’s population depending on the sector for their【C4】______ . Production is subsistence in nature with a high【C5】______ on the rain. The debate on climate change and its impacts on agriculture is【C6】______ very crucial to the very survival of the continent and its people. The continent is particularly【C7】______ to climate change because it includes some of the world’s poorest nations.
The climate in Africa is【C8】______ tropical in nature, which is broadly【C9】______ into three main climatic zones:【C10】______ equatorial, dry, and temperate(温带). Within these zones, altitude and other localized【C11】______ also produce distinctive regional climates.
Climate change,【C12】______ indicated by prolonged drought is one of the most serious climatic【C13】______ affecting the agricultural sector of the continent. As most of the agriculture activities in African countries hinges on rain fed, any adverse changes in the climate would likely have a【C14】______ effect on the sector in the region.
【C15】______ changes in the climate may affect the whole continent, its【C16】______ may vary across the continent. In northeast Africa, more intense dry periods and shorter wet seasons are expected to affect even huge river systems such as the Blue Nile, leading to serious water shortages and【C17】______ consequences to the agriculture and forestry sectors throughout the region. East and Central Africa will also see its agricultural【C18】______ decline. Coastal areas may also be affected by rising sea levels and intrusion of salt water into inland freshwater resources. The staple food for the region, maize, is particularly susceptible to drought. Wetlands of international importance and wildlife are also under threat from【C19】______ in Southern Africa. Climate change, therefore, is expected to worsen the food supply,【C20】______ , exacerbate the widespread poverty in the region. [br] 【C2】
选项
A、to
B、approximately
C、with
D、in
答案
B
解析
介词辨义题。本处意思是:农业为总出口量贡献了大约50%。故选approximately“大约”。
转载请注明原文地址:https://tihaiku.com/zcyy/3593925.html
相关试题推荐
[originaltext]Atonetimeitwasthemostimportantcityintheregion--ab
Theproblemofpopulationismainlyman-made.[br]Itisveryimportanttheactu
Forthesustainabledevelopment,itisimportantto______(想出解决环保问题的办法).figureou
[originaltext]Man’sfirstrealinvention,andoneofthemostimportantinv
[originaltext]Man’sfirstrealinvention,andoneofthemostimportantinv
[originaltext]Atonetimeitwasthemostimportantcityintheregionabu
[originaltext]Atonetimeitwasthemostimportantcityintheregionabu
Televisionisnowplayingaveryimportantpartinourlife.Buttelevision,
SomehistorianssaythatthemostimportantcontributionofDwightEisenhowe
【B1】______[br]【B8】______[originaltext]OneofAmerica’smostimportant(26)
随机试题
HowtoWriteaResearchRe
ABriefHistoryofClockClocksAtbest
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
[originaltext]Americanschoolchildrenoftenwearuniformsiftheyattendreligi
伸长率的大小与下列哪项有关?( )A.标距长度 B.试件的直径 C.原标距
劳务派遣单位的职责包括()。A:向被派遣者支付工资 B:为被派遣者提供福利待遇
证券公司应当在集合资产管理计划设立工作完成后(),将集合资产管理计划的设立情况报
肾小管性蛋白尿见于A.剧烈运动 B.尿道炎 C.肾病综合征 D.间质性肾炎
实施监理的工程,办理工程质量监督注册手续需提供的资料有( )。A.必要的施工图纸
下列关于网络图的说法错误的有( )。A.一个网络图表示一项计划任务 B.单代
最新回复
(
0
)