求问GRE逻辑题

Aten-yearcomparisonbetweentheUnitedStatesandtheSovietUnionintermsofcropyieldsperacrer... 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 yields.
From the information above, which of the following can be most reliably inferred about United States and Soviet agriculture during the ten-year period?
(A)A higher percentage of total agriculture 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 was 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.
请问第一句后半句的Soviet yields是指yields per acre还是总产量?C,D,E为何不对?Soviet的Fallow面积能与USA的Fallow面积直接做比较吗(不是比例)
展开
临怀
2013-03-12 · TA获得超过5838个赞
知道大有可为答主
回答量:2134
采纳率:16%
帮助的人:2104万
展开全部
1. 第一句后半句的Soviet yields是指yields per acre
2.
只比较已耕面积,则苏联每亩产量是美国的68%,比较可耕面积,苏联是美国的114%
所以说明美国休耕面积占可耕面积的比例高于苏联,但是并不能推断出绝对值如何

所以只有A是对的
推荐律师服务: 若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询

为你推荐:

下载百度知道APP,抢鲜体验
使用百度知道APP,立即抢鲜体验。你的手机镜头里或许有别人想知道的答案。
扫描二维码下载
×

类别

我们会通过消息、邮箱等方式尽快将举报结果通知您。

说明

0/200

提交
取消

辅 助

模 式