相关知识点: 试题来源: 解析 B。本题考查时态。“The Challenger space shuttle exploded shortly after takeoff”这句话中“exploded”是 explode 的过去式,所以是一般过去时。A 选项是一般现在时;C 选项是现在完成时;D 选项是过去进行时。反馈 收藏
in the space programme. With the eyes of students across the nation upon her, she might have inspired an entirely new generation of astronauts and space scientists.3 Tragically", she never returned to her classroom 'as the shuttle exploded as引导的原因状语从句just over a minute after taking ...
The flight of Challenger on Mission 51L was actually the second of a planned 15 shuttle flights in 1986,coming on the heels of Mission 61C in the first half of January. Following their 28 January launch, the seven-strong crew—Commander Dick Scobee, Pilot Mike Smith, Mission Specialists Ell...
shuttle exploded on Jan. 28 1986 killing all seven astronauts on board. Take-off and re-entry into Earth's atmosphere are the most dangerous parts of a space mission. In 42 years of US' human space flight there had never been an accident in the descent to Earth or landing. Challenger...
American astronaut Sally Ride took two flights into space aboard the space shuttle Challenger. She was supposed to take a third space flight, but when the Challenger exploded in 1986, shuttle flights were grounded until the cause could be determined. Ride was asked to serve on the committee ...
and there was no abort option while they were firing. That flame eventually burned through the shuttle’s external tank, rupturing the liquid-hydrogen tank milliseconds before the right booster crashed into the liquid-oxygen tank. The two liquids mixed and exploded, destroying the orbiter with it...
Like the Space Shuttle explosion of 1986. Just because you might have been 4 or you were years from being born, doesn't give you a right not to learn about what happened, and why it exploded. So stop thinking you're not in the same generation as someone born in the 70s because you...
it represented one of the most shocking events in the history of American spaceflight. A Presidential Commission was immediately convened to explore what had gone wrong, but with the vast complexity of the space shuttle and so many v 当挑战者爆炸了73秒入它的飞行在1986年1月28日的早晨,它在美...
The Columbia disaster took place on February 1, 2003 with the disintegration of the shuttle as it reentered Earth's atmosphere, killing the seven crew...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
After the space shuttleChallengerexploded 73 seconds after liftoff on the morning of Jan. 28, 1986, investigators discovered that a series of poor decisions led to the deaths of seven astronauts. The day before the launch, engineers from Morton Thiokol, the company that built the solid rocket ...