How many satellites are in space? As of January 2022, more than 4,850 satellites were orbiting the Earth, of which 61 percent belonged to the US.
A number of satellites ___ sent into space in the past few years. A. was B. were C. is D. have been 相关知识点: 试题来源: 解析 D。“A number of + 名词复数”作主语,谓语动词用复数,且根据“in the past few years”可知要用现在完成时,所以用 have been。反馈 收藏 ...
3(2024 ·湖北) So far, Chin a has successfully sent a larg e number of satellites (卫星) and spaceships into space. Spac e scientists hav e been greatly inspired (赋予灵感) by th e old stories and ancient famous peopl e when giving them names.Sinc e thousands of years ago, Chines e...
000 years ago.His discovery made space study take a big step at that time.So,China's first quantum(量子) science satellite was named Mozi,making China the first country in the world to achieve quantum communication between satellites and the ground.(除了古老的故事,太空科学家还从古代名人那里...
weather satellites与put into之间为被动关系,应用被动语态;句意和句中的these years说明应用现在完成时,选C。结果一 题目 A number of weather satellites into space around the earth these years.A.have putB.were putC.have been putD.are put 答案 C...
百度试题 结果1 题目【题目】A number of weather satellites __into space around the earth these years.C.have beenA.have put B.were putD.are putput 相关知识点: 试题来源: 解析 【解析】C 反馈 收藏
判断以下句子是否使用现在完成时。A number of weather satellites (put)into space around the earth these years. A. 是 B. 否 相关知识点: 试题来源: 解析 A 本题考查:现在完成时的概念和使用语境。解题要点:通过已知动词和时间状语来判断。由时间状语these years可知,谓语是过去的动作或状态持续到现在,应...
So far, China has successfully sent a large number of satellites (卫星) and spaceships into space and have greatly improved (赋予灵魂) by the old stories and ancient famous people.So, thousands of years ago, Shīn-people have dreamed of going to the moon. Chang'e is one of the most ...
根据第 一段最后一句“Space scientists have been greatly in- spired(赋予灵感) by the old stories and ancient famous people when giving them names."可知,太空科学家在 命名卫星时从古老的故事和古代名人那里得到了灵 感。 故选 B 2.A 【解析】细节理解题。 题干意为:根据文章,我们 对嫦娥一号有什么...
In addition, SpaceX has been authorised to use Ku-band gateway earth stations for less than 75 of the non-geostationary orbit (NGSO) lower-altitude satellites. "After review of the record, we conclude that grant of the SpaceX Modification Application will serve the public interest,"the FCC ...