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
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since th
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since th
admin
2012-11-22
24
问题
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since the earth is an unimportant planet moving round an unimportant star, it would be a pride on our part to suppose that we are the only intelligent beings in the universe. But to obtain proof is difficult.
The main trouble is that our neighbor worlds, the bodies in the Solar System appear to be unsuitable for advanced life-forms. The Moon may be【S2】______out at once; it has hardly any atmosphere. Venus is little better; the surface temperature is extremely high and the【S3】______is mostly carbon dioxide. Mars with a very thin atmosphere and a severe【S4】______of water may well support simple plant life but there seems no hope of finding animals, while the attractive Martians of the story-tellers have long since been given up.
Of course this has not stopped the flow of bright ideas for【S5】______with the supposed people on Mars. In the early nineteenth century the great mathematician Gauss suggested planting tree-patterns in Siberia, so that the Martians would see them and reply【S6】______Following up this idea, the Austrian scientist Karl Littrow proposed digging very wide ditches in the Sahara, triangular in pattern, and then filling them with petrol or some such substance so that, 【S7】______lit, the ditches would present Martian observers with a "flaming triangle"【S8】______would show the existence here of intelligent minds. Even better were the plans of Charles Cros, a French writer of the eighteen-seventies, who wanted to build a large mirror to reflect the sun’s rays and concentrate them on the surface of Mars, 【S9】______ making a vast burning-glass. By swinging the mirror around, Cros explained, it would be practicable to write words in the Martian deserts simply by burning the sand. For many years he bombarded the French government with literature about this plan and was very【S10】______when no official interest was shown.
A. ruled B. communicating C. sufficiency D. elsewhere
E. which F. disappointed G. carried H. suitably
I. atmosphere J. although K. thereby L. excitedly
M. shortage N. surface O. when
【S9】
选项
答案
K
解析
转载请注明原文地址:https://jikaoti.com/ti/JJPFFFFM
0
大学英语四级
相关试题推荐
Modernmedicaladvances______theaveragelifeexpectancybyseveralyears.
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Duringthefamine,manypeoplewere______tobeggingfoodandmoneyfarawayfromtheirhomes.
A、Thewomanenjoystravelingalot.B、Themanandthewomanarehusbandandwife.C、Thewoman’sexperienceduringherlasttrip
Howusefularetheviewsofpublicschoolstudentsabouttheirteachers?Quiteuseful,accordingtopreliminaryresultsrele
Howusefularetheviewsofpublicschoolstudentsabouttheirteachers?Quiteuseful,accordingtopreliminaryresultsrele
Itisnevertooearlyforyoutolearnaboutthevalueofmoneyasateenager.Manyteenshaveno【B1】______whatittakestoearn
Itisnevertooearlyforyoutolearnaboutthevalueofmoneyasateenager.Manyteenshaveno【B1】______whatittakestoearn
随机试题
中华人民共和国第一部《著作权法》颁布于()年。
下列不需要激素冲击治疗的是
第三代头孢菌素的特点是
从一定意义上说,投资建设规模约束和决定着工程咨询的()
某工程项目,建设单位通过招标选择一个咨询单位承担施工招标代理和施工阶段监理工作,并在监理中标通知书发出后第45天,与该咨询单位签订了委托监理合同。之后双方又另行签订了一份监理酬金比监理中标价降低10%的协议。在施工公开招标中,有A、B、C、D、E、F、G
对于我国商业银行所从事的基金业务,其监管主体是()
江西省“十一五”期间进出口总额为()。
某商店卖出一支钢笔的利润是9元,一瓶墨水的进价是2元。若采用“买4支钢笔送一瓶墨水”的方式促销,共获利1922元,则这次促销最多卖出多少支钢笔?
A、条件(1)充分,但条件(2)不充分。B、条件(2)充分,但条件(1)不充分。C、条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分。D、条件(1)充分,条件(2)也充分。E、条件(1)和(2)单独都不充分,条件(1)和条件(2
阅读以下说明,回答下列问题,将解答填入答题纸对应的解答栏内。【说明】某网络拓扑结构如图1—1所示,网络中心设在图书馆,均采用静态IP接入。该网络在进行IP地址部署时,可供选择的地址块为192.168.100.0/26,各部门计算
最新回复
(
0
)