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
2017-09-04
22
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. 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.
Which of the following statements best describes the organization of the passage?
选项
A、A statement illustrated by an analogy(类比).
B、A hypothesis supported by documentation (引出文献).
C、A comparison of two contrasting theories.
D、A critical analysis of a common assumption.
答案
A
解析
文章阐述了宇宙的未来预测,用火车编组做比喻。故选A。
转载请注明原文地址:https://kaotiyun.com/show/hiiC777K
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
Mrs.Petersstoppedplayingthepianowhenshebegantowork.Shehadlivedinaverysmallflat,andtherehadbeennoroomfor
Pickoutfiveappropriateexpressionsfromtheeightchoicesbelowandcompletethefollowingdialoguebyblackeningthecorresp
Pickouttheappropriateexpressionsfromtheeightchoicesbelowandcompetethefollowingdialoguesbyblackeningthecorrespo
Allthatwereallyneedtoplotoutthefutureofouruniverseareafewgoodmeasurements.Thisdoesnotmeanthatwecansitd
—Alicecamebackhomethedaybeforeyesterday—Really?Where______?
Pickouttheappropriateexpressionsfromtheeightchoicesbelowandcompletethefollowingdialogsbyblackeningthecorrespon
CitizenKane,whilealways______bycritics,wasneverapopularfavouriteformostAmericanviewers.
A.MaybeIshouldcallataxi.B.canyouhelpmeC.it’sthesecondleftD.notreallyE.atthetrafficl
A.MaybeIshouldcallataxi.B.canyouhelpmeC.it’sthesecondleftD.notreallyE.atthetrafficl
随机试题
下列哪种病人不应该怀疑肺癌()
A.列缺 尺泽 肺俞 外关B.列缺 肺俞 尺泽 少商C.尺泽 肺俞 曲池 大椎D.肺俞 太冲 肝俞 经渠E.肺俞 合谷 丰隆 脾俞 太渊
对于签发的涉及结构安全的产品或试验检测项目不合格报告,工地试验室授权负责人应在()个工作日之内报送试验检测委托方。
出境报检应附资料:合同、信用证、厂检单或检验检疫机构出具的换证凭单(正本)、包装性能合格单、发票、装箱单等。( )
“既追求让所有人都受到同样的教育,又追求教育的自由化”体现的是()。(2014.福建)
下列选项中,最重要和最良性的学习动力是()。
按照《宪法》规定,下面情况既是公民的权利又是公民的义务的是()。
2f(x)
三元一次方程组所代表的三个平面的位置关系为()
在长度为n的有序线性表中进行二分查找,需要的比较次数为
最新回复
(
0
)