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Why do we measure the distance in light-years instead of miles? This story is mainly about ______.
Why do we measure the distance in light-years instead of miles? This story is mainly about ______.
admin
2008-12-15
76
问题
Why do we measure the distance in light-years instead of miles?
This story is mainly about ______.
选项
A、the distance between the sun and the other stars
B、the problems of traveling to faraway stars
C、what happens when we travel faster than the speed of light
D、the tool we use when we measure the distance of faraway stars
答案
B
解析
主旨题。文章主要讲述了由于地球与其他星球之间的距离太远了,而且飞行速度也有一定的局限,所以人类很难到达遥远的星球,文中所举的例子均是说明人类登陆其他星球的困难。
转载请注明原文地址:https://kaotiyun.com/show/pwNd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
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公共英语(PETS)
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