In 1955 he came back to his motherland from the US. Under his leadership, China produced its first missile called Long March, and in 1970, launched its first satellite. He was considered as the father of the country's first ballistic missiles, first satellite and the Silkworm anti-ship ...
Like many of the technologies that we take for granted nowadays, it got its start during the Cold War as the U.S. government sought to gain an edge over its bitter rival, the Soviet Union. In 1957 the USSR successfully launched the world’s first satellite into orbit, a move that is ...
We have launched another man-made satellite, is announced in today's newspaper.() A. that B. which C. who D. what 答案 答案选B.句意:我们又发射了一颗人造卫星,这是在今天的报纸上宣布的.因为中间是个逗号,并且前后都是一个句子,这说明需要一个连词;同时这个连词必须担当主语.根据句子意思,此处关...
5.We have launched another man-made satellite, is announced in today's newspaper.( ) A.thatB.whichC.whoD.what 试题答案 在线课程 分析句意:我们又发射了一颗人造卫星,这是在今天的报纸上宣布的. 解答答案选B. 句意:我们又发射了一颗人造卫星,这是在今天的报纸上宣布的.因为中间是个逗号,并且前后都...
We have launched another man-made satellite, ___ is announced in today’s newspaper. A.thatB.whichC.whoD.what 试题答案 在线课程 B 句意:“我国又发射了一颗人造卫星,这是今天报纸上说的。”因为中间是个逗号,并且前后都是一个句子,这说明需要一个连词;同时这个连词必须担当主语。根据句子意思,显然这个...
(2013·高考天津卷)We have launched another manmade satellite, ___is announced in today’s newspaper. A.thatB.which C.whoD.what 试题答案 在线课程 选B。句意:“我们又发射了一颗人造卫星,这件事在今天的报纸上被公布了。”B项which引导非限制性定语从句,指代 “发射人造卫星”这件事,在定语从句...
We discuss how the number of satellites flying at any time has progressed as a function of increased launch rates and mission longevity, and how the spatial resolutions of the data they collect has evolved. The first such satellite was launched by the USA in 1972. Since then government and/...
Who launched the Northern Expedition? Who was the first astronaut in space? Who was the first person to discover North America? Who built Jahangir's tomb? Who built the first astronomical telescope? Who was the first person to die in human history?
as Starlink. They are aiming to create a satellite constellation that will provide broadband internet service to people all over the world. The first satellites were launched in February of 2019 and the company is planning on launching a total of 648 satellites as part of their first ...
Who famously challenged the Church during the Scientific Revolution? Who invented light years? Who launched Hubble Telescope? Who examined the moon during the Scientific Revolution? Who invented the first refracting telescope? Who invented the first reflecting telescope?