试题来源: 解析 B 【详解】 句意:——为什么我们需要搬到火星?——地球很拥挤且污染严重。 考查特殊疑问句。How怎样;Why为什么;What什么;Where在哪里。答语“Earth is crowded and polluted.”解释了搬到火星的原因,故此处询问为什么,应用Why提问。故选B。
百度试题 结果1 题目So far, how long will it take us from the Earth to Mars by spaceship?Two or three days.A few months.A few daysA few years. 相关知识点: 试题来源: 解析 最佳答案B 反馈 收藏
to see it.A great many goods were sent to the exhibition from various parts of the world.There was also a lot of machinery on show.The most wonderful piece of machinery on show was Nasmyth's steam hammer.Though in those days,traveling was not as easy as it is today,steam boats ...
18.-Could you tell us to travel from Earth to Mars by spacecraft?-It takes months.I think.( )A.how far it takesB.how often does it takeC.how long it takesD.how soon does it take
How many Mars rovers have been sent to Mars? NASA has sent five rovers to Mars: Sojourner, Spirit, Opportunity, Curiosity and Perseverance. What are the 2 rovers on Mars called? The two rovers on Mars are Curiosity and Perseverance. How many rovers are currently on Mars? There are two ro...
How many Mars rovers have been sent to Mars? NASA has sent five rovers to Mars: Sojourner, Spirit, Opportunity, Curiosity and Perseverance. What are the 2 rovers on Mars called? The two rovers on Mars are Curiosity and Perseverance. How many rovers are currently on Mars? There are two ro...
the Free Return Transfer. The Hohmann Transfer is often referred to as the one that requires the lowest energy, but that is true only if you want the transfer to last only a few days and, in addition, if some constraints on the launch apply. Things get very complicated from there on, ...
百度试题 结果1 题目( B )2.do we need to move to Mars?-Earth is crowded and polluted. A. How B. Why C. What D. Where 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The Zhurong rover of China's Mars mission had been working for 342 Martian days as of Sunday, and traveled more than 1,900 meters southward from its landing point on the Utopia Planitia, a vast plain in the northern hemisphere of Mars.RELATED...
How many moons would fit in the earth? The Moon: The moon is Earth's only natural satellite. It orbits the Earth once every 27.3 days. The rocks on the moon are similar to rocks on the Earth. There are various theories explaining how the moon came into existence. ...