首页
登录
职称英语
We don’t have beds in the spacecraft, but we do have sleeping bags. During t
We don’t have beds in the spacecraft, but we do have sleeping bags. During t
游客
2024-06-20
60
管理
问题
We don’t have beds in the spacecraft, but we do have sleeping bags. During the day, when we are working, we leave the bags tied to the wall, out of the ways. At bedtime we untie them and take them wherever we’ve chosen to sleep.
On most spacecraft flights everyone sleeps at the same time. No one has to stay awake to watch over the spacecraft; the craft’s computers call us on the radio.
On the spacecraft, sleep-time doesn’t mean nighttime. During each ninety-minute orbit (轨道) the sun "rises" and shines through our windows for about fifty minutes, then it "sets" as the spacecraft takes us around the dark side of the Earth. To keep the sun out of our eyes, we wear black sleep masks.
It is surprisingly easy to get comfortable and fall asleep in space. Every astronaut (宇航员) sleeps differently: some sleep upside down, some sideways, and some right side up. When it’s time to sleep, I take my bag, my sleep mask and my tape player with earphones and float (漂浮) up to the flight deck (驾驶舱). Then I get into the bag, and float in a sitting position just above a seat, right next to a window. Before I pull the mask down over my eyes, I relax for a while, listening to music and watching the Earth go by under me. [br] How long does it take the spacecraft to go round the Earth?
选项
A、Forty minutes.
B、Fifty minutes.
C、Ninety minutes.
D、Twenty-four hours.
答案
C
解析
根据第三段第二句话可知,飞船沿着轨道每90分钟(each ninety-minute orbit)就可以看到一次日升日落(“rises”…“sets”)。所以可以推理出,飞船绕地球一周需要90分钟,因此C项是正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3642534.html
相关试题推荐
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
ThereweremanygreatartistsduringtheRenaissance.Perhapsthemostfamous
ThereweremanygreatartistsduringtheRenaissance.Perhapsthemostfamous
Duringtheholidays,theconcertenjoyshuge(popular)________despitethehigh
Thecostofheatingyourhome,particularlyduringthecolderwintermonths,
Thecostofheatingyourhome,particularlyduringthecolderwintermonths,
随机试题
[originaltext]Forfifteenyears,Sustrans--standingfor"sustainabletran
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Whitecollarsareencouragedtowritesuchmessages"’upset","busy","obsessed
按材料的储备形态构成分类,将材料储备定额分为()等。A.经常储备定额 B.相
桩的水平荷载试验可采用连续加载或循环加载两种方式。()
情感领域的教学目标根据价值内化的程度分为( )。A.若干等级 B.五个等级
某厂房内设有水喷雾灭火系统,当系统响应时间为125s时,该系统应至少有()种控
关于化学反应速率常数k的说法正确的是:A.k值较大的反应,其反应速率在任何情况下
下列属于影响融资方式选择的因素的有()。A:经济环境 B:汇率的变动 C:融
下列选项中,属于上大学的非货币成本的是()。A.直接成本 B.间接成本 C.
最新回复
(
0
)