首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Man has become master of the earth’ s surface. He is constantly probing into the earth’ s depths and into the atmosphere’ s uppe
Man has become master of the earth’ s surface. He is constantly probing into the earth’ s depths and into the atmosphere’ s uppe
admin
2011-01-26
33
问题
Man has become master of the earth’ s surface. He is constantly probing into the earth’ s depths and into the atmosphere’ s upper reaches. Yet it is doubtful whether man, with ’all of his intelligence and vigor, holds his planetary seat with greater assurance than a vast tribe of small, many-legged animals that pass their lives at his feet--the spiders.
Spiders are among the miracles of science. They dwell at higher altitudes than any other creature their size or lager. On the slopes of Mount Everest, at an altitude of twenty-two thousand feet-- five thousand feet above the vegetation line--lives a species of black spider only a quarter of an inch long. This is an incredible environment for creatures so delicately constructed. To protect themselves from the chill of night, they take shelter in crevices where the twenty-four-hour variation in temperature is only twelve degrees, as against forty-four on the outside.
Spiders inhabit others unlikely places--rabbit burrows, flowers, anthills, and the desolate, drafty aeries of eagles. They have been found soaring through the air five miles above the earth. One species has been discovered in an African cavern move than two thousand feet underground.
Spiders "hold their planetary seat with assurance" because they are ______.
选项
A、more numerous than any other species
B、able to adapt to hostile environments
C、masters of the earth’s surface
D、all of the above
答案
B
解析
第二段中作者一直在解释“他们是如何在几千尺高的悬崖上生存,怎样对付寒冷和温差”等等。意在说明它们能够“hold their planetary seat with assurance”是因为“他们能够适应各种艰苦的环境。”
转载请注明原文地址:https://jikaoti.com/ti/NxXYFFFM
0
考博英语
相关试题推荐
Lookatthenotesbelow.Someinformationismissing.Youwillheartwopeoplenegotiatinganeworder.Foreachquestion(9-15),
Lookatthenotesbelow.Someinformationismissing.Youwillheartwopeoplenegotiatinganeworder.Foreachquestion(9-15),
EmilystartedworkingforthecompanyEmilywouldlikethecompanytobuy
Lookattheleafletbelow.Itshowsalistoftalksorganisedbyamarketingassociationforitsmembers.Forquestions6-10,de
一般情况下,本刊按收到投稿的时间先后顺序,对每一篇作品按照规定的标准进行审阅,然后决定发表或退稿,同时向作者发出通知。审阅将在收到作者投稿后2个月内完成。如果作者在投稿后3个月内未收到录用通知或退稿信,可自行考虑投寄他刊。
Theloyaltyofdogstotheirmastershasearned______"man’sbestfriend".
自从理查德·尼克松向癌症宣战以来已经有三十年了。其间,不少专家、学者耗费巨资试图寻找各种方法以攻克这个难题。但是今天的癌症死亡率与七十年代仍旧差不多一样高。美国妇女中死于乳腺癌患者是世界上许多其他国家的五到三十倍。在泰国每十万妇女中仅2至5人死于乳腺癌,而
各学科的发展日新月异,令人称奇,但衡量知识、能力的方法却依然如故,非常原始。迄今为止,教育工作还没有找到比考试更有效、更可靠的方法,着实有点离奇。尽管有不少人认定,考试能衡量出一个人的知识水平,但实际情况恰恰相反,这是有目共睹的。要想考察一个人死记硬背的本
语言时空论是语言学这门科学的一个观点。它以时空差异关注语言的流变现象,因为语言的流变基本上是由时间和空间延展在强度和性质上的差异表现出来的。它寻求以客观和精确的方式来描写和揭示语言的基本概念、内在关系以及流变机理,追索有关语言的现实知识。它观察语言流变的原
1.实行改革开放以来改变了过去封闭半封闭状态,提高了我国经济水平。2.文化是某一特定人群所有传统、习俗、信仰和各种生活方式的总和。3.一个国家的妇女通过她们的生活方式塑造了这个国家的道德、宗教和政治。4.帮助真正的穷人,要比仅仅缩小贫富差距更有价值
随机试题
下述肝气郁结经行情志异常的主证中,哪项是错误的:
一个慢性肾炎尿毒症期患者,近1个月来厌食、皮肤瘙痒。前日起呕吐。体检:血压23/16kPa(172/120mmHg),神清,贫血貌,心肺检查无异常。Hb50g/L,尿蛋白+,尿比重1.010,血肌酐795μmol/L,血钾4.0mmol/L护理该患者,
男,29岁,近中阻生需要拔除。在行左侧下牙槽神经口腔内阻滞麻醉后不久出现牙关紧闭,最可能的原因是
在一个心动周期中,二尖瓣开放始于
某普通住宅,采用现浇钢筋混凝土部分框支剪力墙结构,房屋高度40.9m。地下1层,地上13层,首层~三层层高分别为4.5m、4.2m、3.9m,其余各层层高均为2.8m,抗震设防烈度为7度,Ⅱ类建筑场地。第3层设转换层,纵横向均有落地剪力墙,地下一层顶板可作
下列事项中产生非抽样风险的不包括()。
机会总是眷顾有所准备的人,当错失良机时,我们往往()。
情绪劳动是指员工在工作中的人际交往过程中表现出令组织满意的情绪。根据上述定义,下列情形不属于情绪劳动的是:
设随机变量X,Y独立同分布,且X~N(0,σ2),再设U=aX+bY,V=aX一bY,其中a,b为不相等的常数.求:设U,V不相关,求常数a,b之间的关系.
Iftheywantedtogoout,theycouldalways________metostaywiththebaby.
最新回复
(
0
)