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
A、It flies at about 80 miles per hour. B、It’s fully electric and semi-automatic. C、It has a maximum 2-passenger capacity. D、It f
A、It flies at about 80 miles per hour. B、It’s fully electric and semi-automatic. C、It has a maximum 2-passenger capacity. D、It f
admin
2022-05-25
31
问题
Good afternoon, everyone. Today, I’ll talk about how autonomous flying taxis could change the way you travel. Cities are getting more populated. The roads are full, and it’s really difficult to expand them. And so in a lot of places, there really aren’t a lot of good solutions for getting around traffic. But what if you could fly over it? The sky is underutilized, and I would argue it will never be as congested as the roads are. In many cases, flying can be a long-term, compelling alternative to traveling on the ground.
One of the first things we need is an aircraft that can take off and land in small spaces and quickly take you where you want to go. And helicopters can do that today, but traditionally, helicopters have been just a little bit too expensive, just a little too hard to pilot and just a little too noisy to be used for daily transportation in cities. Well, electric flight and autonomy are changing that.
Electric flight, in particular, unlocks new possibilities for vehicle configurations that we just could not explore in the past. If you use electric motors, you can have many of them around the aircraft, and it doesn’t add a lot of extra weight. And that gives you redundancy and safety. And also, they are cleaner, cheaper and quieter than internal combustion engines. Autonomy allows the transportation network to scale, and I actually think it makes the aircraft safer. Commercial flights are already automated for most of their duration, and I believe there will come a day when we won’t even trust an airplane that required a human to fly.
So, one of our teams at A3 wanted to see just how close this future really was. So they built and flew a prototype of one such vehicle. And they made a point of only using mature, commercially available technologies today. We call it Vahana. It’s fully electric. It takes off and lands vertically, but flies forward like a regular airplane. It’s fully self-piloted. You push a button, and it takes off, flies and lands, all by itself. The prototype that you see here is designed to carry a single passenger and luggage. And it can go about 20 miles in 15 minutes. And our estimate for a trip like that is it would cost around 40 dollars, which you can really build a business around.
Question 16. Why does the speaker say traditional helicopters are not fit for daily transportation?
Question 17. What do we learn about electric flight and autonomy?
Question 18. What do we learn about Vahana?
选项
A、It flies at about 80 miles per hour.
B、It’s fully electric and semi-automatic.
C、It has a maximum 2-passenger capacity.
D、It flies forward in a different way from a regular airplane.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/0ux7777K
0
大学英语六级
相关试题推荐
京韵大鼓(北京大鼓)是包含着北京方言的大鼓表演。这种大众娱乐的风格主要是说唱,用北京方言讲故事并且用大鼓伴奏。这种艺术形式的前身是“怯大鼓”,它由民间艺术家于德魁加上北京方言和声调,变成今天为人所熟知的京韵大鼓。20世纪20年代以后,京韵大鼓艺术逐渐成
A、Theythemselveswouldliketodoitbutdon’tdareto.B、It’sanopportunityforrelievingtheirtension.C、Theyhaveseenthi
A、Hostingatelevisionshow.B、Reviewinganewbiography.C、Interviewingamoviestar.D、Discussingteenagerolemodels.A从选项预测本
A、Itisgettingthingsdonethroughotherpeople.B、Itishelpinganorganizationfindtherightstaff.C、Itisassemblingpeopl
A、Shewasoftenscoldedbyherteachers.B、Sheperformedwellonnormaloccasions.C、Shehadquitealotofpoorstudyhabits.D
A、Largeamountsofnewspaperandcoloredpaper.B、Smallpiecesofragsorcloth.C、Oldenvelopeswithlittleprinting.D、Softwo
A、Travellingabroad.B、Improvingculturalawareness.C、Raisingfund.D、Learningteachingapproaches.C本题问的是目前女士在这个项目中做什么。在谈论了参加项
A、Ignoringthegeneralmeaningofthetext.B、Payinglittleattentiontotheprintingmistakes.C、Pursuingathoroughunderstand
A、Englishlearners.B、Studentsstudyingabroad.C、Allthepeopleoutsidetheclassroom.D、PeopledoingbusinesswithWesterncou
A、Theyuseamapandthememoryoflocation.B、Theyusethesunandthestars.C、Theyuseamapandtheearth’smagneticfield.
随机试题
下列画横线的句子翻译错误的是()
糖皮质激素在肝细胞中的主要代谢产物是
蓼大青叶粉末巾可见
关于一类防雷建筑物的以下叙述中,哪个是正确的?
发行公司债券的上市公司应当为债券持有人聘请()。
公司治理的内容不包括()。
列宁称之为“俄国革命的一面镜子”的作家是()。
高尔顿研究了遗传因素对智力发展的影响,其研究方法是()。(2011年)
下列叙述中正确的是()。
HowGlobalWarmingWorksGasesintheEarth’satmosphereactlikeglassinagreenhouse-trappingheatandmakinglifeonEar
最新回复
(
0
)