首页
登录
职称英语
Thomas Malthus published his "Essay on the Principle of Population" almost
Thomas Malthus published his "Essay on the Principle of Population" almost
游客
2024-12-26
41
管理
问题
Thomas Malthus published his "Essay on the
Principle of Population" almost 200 years ago. Ever
since then, forecasters have being warning that (1)______
worldwide famine was just around the next corner.
The fast-growing population’s demand for food, they
warned, would soon exceed their supply, leading to (2)______
widespread food shortages and starvation.
But in reality, the world’s total grain harvest
has risen steadily over the years. Except relatively (3)______
isolated trouble spots like present-day Somalia, and
occasional years of good harvests, the world’s food (4)______
crisis has remained just around the corner. Most
experts believe this can continue even as if the (5)______
population doubles by the mid-21st century,
although feeding 10 billion people will not be easy
for politics, economic and environmental reasons. (6)______
Optimists point to concrete examples of continued
improvements in yield. In Africa, by instance, im- (7)______
proved seed, more fertilizer and advanced growing
practices have been more than doubled corn and wheat (8)______
yields in an experiment. Elsewhere, rice experts in
the Philippines are producing a plant with few stems (9)______
and more seeds. There is no guarantee that plant
breeders can continue to develop new, higher-yield
ing crops, and most researchers see their success to (10)______
date as reason for hope. [br] (2)
选项
答案
their→its
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3885434.html
相关试题推荐
TessoftheD’urbervilleswaswrittenby______.A、JohnGalsworthyB、ThomasHardy
Threeweeksago,astorywepublishedputusinthemiddleofacontroversy.
Threeweeksago,astorywepublishedputusinthemiddleofacontroversy.
OncefoundalmostentirelyinthewesternUnitedStatesandinAsia,dinosau
OncefoundalmostentirelyinthewesternUnitedStatesandinAsia,dinosau
OncefoundalmostentirelyinthewesternUnitedStatesandinAsia,dinosau
Britainhasapopulationof______in1990.A、100,411,000B、87,411,000C、5.7411e+00
ManyIndiantribesdependedon______fortheirexistence,whichwerealmostwiped
ThomasBecketspent______yearsonthecontinentandreturnedtoEnglandin1170.
ThomasMalthuspublishedhis"EssayonthePrincipleofPopulation"almost
随机试题
______travelingexpensesrisingalot,Mm.Whitehadtochangeallhexplansfo
Lessthanayearago,anewgenerationofdietpillsseemedtoofferthelon
通过音乐教学评价,可以发现教学中存在的问题,并找出问题的原因,这体现了音乐教学评
患者头重如裹,胸闷脘痞,口腻不渴,纳谷不香,甚至恶心欲呕,肢困嗜睡的临床意义是(
金黄色葡萄球菌的致病物质不包括A:凝固酶B:葡萄球菌溶素C:肠毒素D:表皮
对于有限空间作业,必须严格执行作业审批制度,有限空间作业的现场负责人、监护人员、
运维班负责的带电检测项目包括:一、二次设备红外热成像检测、开关柜地电波检测、变压
土地用途管制的核心是()。A.土地的国有化 B.土地的经济价值
卡尔·马克思说:“法官是法律世界的国王,法官除了法律没有别的上司。”对于这句话,
涂料由主要成膜物质、次要成膜物质和辅助成膜物质组成。下列材料属于辅助成膜物质的是
最新回复
(
0
)