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
专升本
All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit d
All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit d
admin
2009-08-21
88
问题
All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit down today and outline the future course of the universe with anything like certainty. There are still too many things we do not know about the way the universe is put together. But we do know exactly what information we need to fill in our knowledge, and we have a pretty good idea of how to go about getting it. Perhaps the best way to think of our present situation is to imagine a train coming into a switchyard(调车场). All of the switches(转辙器)are set before the train arrives, so that its path is completely determined. Some switches we can see, others we cannot. There is no ambiguity if we can see the setting of a switch; we can say with confidence that some possible futures will not materialize and others will. At the unseen switches, however, there is no such certainty. We know the train will take one of the tracks leading out, but we have no idea which one. The unseen switches are the true decision points in the future, and what happens when we arrive at them determines the entire subsequent course of events.
When we think about the future of the universe, we can see our "track" many billions of years into the future, but after that there are decision points to be dealt with and possible fates to consider. The goal of science is to reduce the ambiguity at the decision points and find the true road that will be followed.
选项
A、have too many conflicting theories
B、do not have enough funding to continue our research
C、are not sure how the universe is put together
D、have focused our investigations on the moon and planets
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/z6vC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
ThebabywassenttoahospitalinLondonbecause______.Fromthispassageitseemsthatthebaby’sillnesshadsomethingtod
WhydidStanleyWilliamswriteanti-gangbooks?WhichofthefollowingbestdescribesWilliams’feelingsaboutprison?
IncomparingallofEarth’sgeologicalevolutiontoonecalendaryear,theauthorshows______.Accordingtothepassage,primi
Manypeoplefindhomegardening______.Whichofthefollowingstatementsistrue?
Sheneedssomecomfort,butIreallycan’tthinkofanything______(suit)tosay.
Infact,textbookauthorsfrequentlygiveequaltimetoopposingpointsofviewsothatreaderscandrawtheirownconclusion.
Accordingtothepassage,cultureshock______.Accordingtothepassage,howwouldapersonwhostaysabroadmostprobablyrea
Accordingtotheauthor,reallygoodscience______.Theauthorbelievesthat______.
随机试题
5,8,-4,9,(),30,18,21
小李在某影楼为自己拍摄了一幅艺术照片。后影楼未经小李同意,将该照片交给某杂志当封面。小李得知后,十分气愤,遂诉至法院。问:(1)该照片属于何种类型的作品?(2)小李对自己的照片享有什么权利?(3)试对本案提出处理意见。
属于局部作用的例子是
下列关于营业额的表述正确的是()。
纳税人的权利是建立在其纳税义务的基础之上,处于从属地位,所以税法具有义务性法规的特点,这一特点是由税收的()特点所决定的。
教师职业的专业化应具备的条件有()。
一、注意事项申论考试与传统的作文考试不同,是分析驾驭材料的能力与表达能力并重的考试。二、给定资料1.由美国次贷危机引起的金融危机,正在美国和欧洲一些国家深化,并向世界其他国家蔓延,从虚拟经济渐渐波及实体经济,过程发展之快、数量之大、影响之巨大,
截至2014年12月底,全国实有各类市场主体6932.22万户,比上年末增长14.35%,增速较上年同期增加4.02个百分点;注册资本(金)129.23万亿元,比上年末增长27.70%。其中,企业1819.28万户,个体工商户4984.06万户,农民专业合
某文件系统中,文件的物理结构采用UNIX的三级索引结构(假设一个物理块可以存放256个块号),若要读取一个文件的第2583块,则将用到
在一台正在运行的SQLServei2008中,现需使用复制数据库文件的方法将某数据库从一台服务器移动到另一台服务器。关于复制数据库文件,有下列实现方法:Ⅰ.首先从数据库服务器中分离出要复制的数据库,然后复制数据库文件Ⅱ.首先停止SQLSe
最新回复
(
0
)