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【单选题】
More Rural Research is Needed 1.Agricultural research funding is vital if the world is to feed itself better than it does now.Dr.Tony Fischer, crop scientist, said demand was growing at 2.5% per year, but with modern technologies and the development of new ones, the world should be able to stay ahead. 2.'The global decline in investment in international agricultural research must be reversed if significant.progress is to be made towards reducing malnutrition(营养不良)and poverty,' he said. 3.Research is needed to solve food production, land degradation(贫瘠化)and environmental problem.Secure local food supplies led to economic growth which, in turn, slowed population growth.Dr.Fischer painted a picture of the world's ability to feed itself in the first 25 years of the new century, when the world's population is expected to rise from 5.8 to 8 billion.He said that things will probably hold or improve but there'll still be a lot of hungry people.The biggest concentration of poor and hungry people would be :in subSaharan Africa and southern Asia in 2020, similar to the current pattern.If there is any change, a slight improvement will be seen in southern Asia, but not in subSaharan Africa.The major improvement will be in East Asia, South America and Southeastern Asia. 4.The developing world was investing about 0.5%, or $8 billion a year, of its agricultural gross domestic product (GDP) on research, and the developed world was spending 2.5 % of its GDP.Dr.Fisher said more was needed from all countries. 5.He said crop research could produce technologies, that spread across many countries, such as wheat, production research having spin-offs for Mexico, China or India. 6.'Technologies still need to be refined for the local conditions but a lot of the strategic research can have global application, so that money can be used very efficiently,' Dr.Fischer said. 7.Yields of rice, wheat and maize(玉米)have grown impressively in the past 30 years,especially in developing .countries.For example, maize production rose from 2 to 8 tonnes per hectare(公顷)between 1950 and 1995.But technologies driving this growth, such as high-yield varieties, fertilizers and irrigation, were becoming exhausted.'If you want to save the land for non-agricultural activities, for forests and wildlife, you're going to have to increase yield,' Dr.Fischer said.
A.
The Same or Improved Food Supply Situation in 2020
B.
Research Focus on Increased Yield C More Research Funding Needed D.Local Situations Analyzed E.Increase in Investment on Agricultural Research F.Sustained Development of Modern Technologies 第 23 题 Paragraph 1____.
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参考答案:
举一反三
【多选题】结晶度增加,性能增加的有()。
A.
屈服应力
B.
强度
C.
模量
D.
硬度
E.
冲击韧性
【单选题】∫ π 2 0 cosxdx =(  )
A.
-1
B.
1
C.
0
D.
2
【简答题】cosxdx=_________d(sinx)
【单选题】d( )=cosxdx
A.
sinx
B.
cosx
C.
-sinx
D.
-cosx
【多选题】古人说的“吾日三省吾身”是指?
A.
体验生活,经常进行内省
B.
通过自我观察,分析和体验,对自己形成一个较为真切的认识
C.
经常进行省察检讨,使自己的行为符合职业道德规范
D.
自觉遵守社会公德
【多选题】近身作业空间包括——
A.
坐姿近身作业空间
B.
立姿近身作业空间
C.
脚作业空间
D.
受限作业空间
【多选题】近身作业空间包括——
A.
坐姿近身作业空间
B.
立姿近身作业空间
C.
脚作业空间
D.
作业场所
【单选题】空间陈列是指占据展厅、陈列厅、营业厅()的区位陈列。
A.
吊顶空间
B.
地面空间
C.
下部空间
D.
上部空
【单选题】在Excel 2010的工作表中最小操作单位是
A.
一列
B.
一行
C.
一张表
D.
单元格
【判断题】有限空间作业是指作业人员进入有限空间实施的作业活动,包括有限空间场所进行的安装、检修、巡视、检查等工作。()
A.
正确
B.
错误
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