首页
登录
职称英语
A ten-year comparison between the United States and the Soviet Union in terms of
A ten-year comparison between the United States and the Soviet Union in terms of
游客
2024-01-13
54
管理
问题
A ten-year comparison between the United States and the Soviet Union in terms of crop yields per acre revealed that when only planted acreage is compared, Soviet yields are equal to 68 percent of United States yields. When total agricultural acreage(planted acreage plus fallow acreage)is compared, however, Soviet yield is 114 percent of United States yield. From the information above, which of the following can be most reliably inferred about United States and Soviet agriculture during the ten-year period?
选项
A、A higher percentage of total agricultural acreage was fallow in the United States than in the Soviet Union.
B、The United States had more fallow acreage than planted acreage.
C、Fewer total acres of available agricultural land were fallow in the Soviet Union than in the United States.
D、The Soviet Union had more planted acreage than fallow acreage.
E、The Soviet Union produced a greater volume of crops than the United States produced.
答案
A
解析
要注意读懂题目,题目所做比较对象是苏联与美国的Crop yields per acre。若用X表示苏联粮食总产量,a表示苏联planted acreage,a’表示苏联fallow acreage,用y表示美国粮食总产量,b表示美国planted acreage,b’表示美国fallow acreage,那么,
。当一个分数的分子不变时,那么分母所增加的比例越小,其值就越大。因此我们由
就可以得出a’在(a+a’)中占的比重一定比b’在(b+b’)中占的比重小,所以(A)正确;(C)、(D)易误选,但仅仅一个数量一般不能说明问题。试体会(C)的一个反例:
,其中X=1000,y=500,a’=100,b’=90。
转载请注明原文地址:https://tihaiku.com/zcyy/3358582.html
相关试题推荐
Seldom______anymistakesduringhislastten-yearserviceinthiscompany.A、did
Thestudentsare______youngpeoplebetweentheageofsixteenandtwenty.A、most
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
OneofthepoliticalissuesthatisheardalotaboutintheStateslatelyis
Itistheinteractionbetweenpeople,ratherthantheeventsthat______intheir
IntheUnitedStates,30percentoftheadultpopulationhasa"weightproble
随机试题
【B1】[br]【B7】A、forB、onC、toA三个选项中只有for才能接表示一段时间的fourminutes。
______isthesecondlargestcityofCanada.A、CornerBrookB、TorontoC、Montreal
[originaltext][12]Intoday’spersonalitystakes,nothingismorehighlyvalued
Sheisalwayseasytogetalongwith,butsheisdifficulttounderstand______.
Earlyoccupationsaroundtheri
前S抗原(PreS1,PreS2)检测
有滋阴补血,益精填髓功能的饮片规格是A:生地黄B:鲜地黄C:熟地黄D:生地
根据《省域城镇体系规划编制审批办法》规定,省、自治区人民政府城乡规划主管部门应当
某政府投资工程施工招标项目,分A、B两个标段,一次招标完成。招标代理合同约定按规
1938年底日本调整了侵华政策,主要表现为( ) A.以华制华、以战养战.
最新回复
(
0
)