首页
登录
职称英语
Through a series of experiments, an American scientist has obtained an under
Through a series of experiments, an American scientist has obtained an under
游客
2023-07-27
13
管理
问题
Through a series of experiments, an American scientist has obtained an understanding of the social structure of the most complex of ant societies. The ants examined are the only creatures other than man to have given up hunting and collecting for a completely agricultural way of life. In their underground nests they cultivate gardens on soil made from finely chopped leaves. This is a complex operation requiring considerable division of labor. The workers of this type of ant can be divided into four groups according to size. Each of the groups performs a particular set of jobs.
The making and care of the gardens and the nursing of the young ants are done by the smallest workers. Slightly larger workers are responsible for chopping up leaves to make them suitable for use in the gardens and for cleaning the nest. A third group of still larger ants do the construction work and collect fresh leaves from outside the nest. The largest are the soldier ants, responsible for defending the nest.
To find out how good the various size-groups are at different tasks, the scientist measured the amount of work done by the ants against the amount of energy they used. He examined first the gathering and carrying of leaves. He selected one of the size-groups, and then measured how efficiently these ants could find leaves and run back to the nest. Then he repeated the experiment for each of the other size-groups. In this way he could see whether any group could do the job more efficiently than the group normally undertaking it.
The intermediate-sized ants that normally perform this task proved to be the most efficient for their energy costs, but when the scientist examined the whole set of jobs performed by each group of ants it appeared that some sizes of worker ant were not ideally suited to the particular jobs they performed. [br] "Good" (Para. 3, Line 1) refers to the ants’______.
选项
A、co-operation in working
B、sense of responsibility
C、efficiency in working
D、willingness to work hard
答案
C
解析
词义题。本题问的是:“good”一词是指蚂蚁的______。依据上下文可知,科学家想知道蚂蚁完成的工作和它们耗费精力的比例关系,即不同组别的蚂蚁从事不同劳动时的工作效率。故选C 。
转载请注明原文地址:https://tihaiku.com/zcyy/2873050.html
相关试题推荐
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
[originaltext]MostAmericansthinkthaticecreamisasAmericanasbasebal
[originaltext]MostAmericansthinkthaticecreamisasAmericanasbasebal
[originaltext]MostAmericansthinkthaticecreamisasAmericanasbasebal
Aclassicseriesofexperimentstodeterminetheeffectsofoverpopulationo
Aclassicseriesofexperimentstodeterminetheeffectsofoverpopulationo
随机试题
Somehousesaredesignedtobesmart.Othershavesmartdesigns.Anexample
在外汇风险中,最常见而又最重要的是()。A、交易风险B、经济风险C、储备风险D、信用风险A本题考查交易风险在外汇风险中的地位。交易风险是外汇风
若sec2x是f(x)的一个原函数,则 等于( )。A、tan
分析歌曲《东方之珠》。 要求: (1)写出歌曲的调式调性。 (2)说明
利用PVC输液管线输注药物时,不被管材吸附的药物是A.氯丙嗪 B.硝酸甘油
根分叉病变治疗比较困难,近年来对Ⅱ度根分叉缺损治疗较有效的方法是A.截根术 B
某省纺织品集团公司从A国进口粗梳羊毛(税则号列51051000,适用非优惠原产
测算财务杠杆系数和资本成本率的目的是()。A.提高息税前利率 B.规避营业风
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
项目监理机构宜将审查施工单位施工组织设计的情况,特别是( )及时向建设单位通报
最新回复
(
0
)