Living on Mars seems like living on a very high mountain. There is a very thin . It might be 20 degrees above zero at noon and 60 degrees below zero . A lot of people think there may be plants on Mars. We know that Mars has carbon .This is a kind of material in all plants a...
gas气体。句意:有很稀薄的空气。根据Living on Mars seems like living on a very high mountain. 可知,山上空气稀薄。故选A。【小题4】考查介词短语及语境的理解。A. at night在晚上; B. in the daytime 在白天; C. in the morning 在早晨; D. in the afternoon在下午。句意:它可能在中午零上20...
onIsOnMarsandLunarthereMoon甲烷火星 系统标签: methanemarslunarplanetary火星甲烷 IsthereMethaneonMars?KevinZahnle 1 ,RichardFreedman 1,2 ,andDavidCatling 3 , 1 NASAAmes ResearchCenter,MS245-3,MoffettField,CA,USA(Kevin.J.Zahnle@nasa.gov), 2 SETIInstitute,and 3 Dept.Earth &SpaceSciences&Astrobiolo...
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Scientists are seeking to find out what is producing the slow release of methane gas on Mars. 科学家们正在寻找火星上缓慢释放甲烷气体的原因。 Methane often results from biological processes. On Earth, most of the gas comes from living creatures. For this reason, the American space agency NASA ...
二、完形填空(每小题1分,共10分)Do you know Mars? We are always 1 ,“Is there life on Mars?We all know that it is difficult for people on the Earth to live on Marsbecause we need water and oxygen to 2 , but there is little oxygen onMars.Living on Mars seems like living on a...
Is there life on Mars? We do not know. But we are sure that earth people do not live on Mars. Earth people need oxygen to breathe. There is almost no oxygen on Mars. It is uncertain exactly how life arose on Earth, so it is difficult to determine how com
Do you know Mars? We are always___, “Is there life on Mars?” We all know that it is difficult for people on the Earth to live on Mars because we need water and oxygen to ___, but there is little oxygen on Mars. Living on Mars seems like...
Scientists are seeking to find out what is producing the slow release of methane gas on Mars.科学家们正在寻求找出是什么导致了火星上甲烷气体的缓慢释放。Methane often results from biological processes. 甲烷通常来自生物过程。On Earth, most of the gas comes
Pavlov said this theory could help explain why methane levels have only been discovered in the Gale Crater area. It is the only place on Mars where NASA’s Curiosity rover is currently active. 巴甫洛夫说,这一理论可以帮助解释为什么只在盖尔陨石坑地区发现了甲烷水平。 这是美国宇航局好奇号火星车...