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 its nearly 30-year history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the Challenger exploded duri...
On January 28th, 1986, the Space Shuttle Challenger lifted off from Cape Canaveral in Florida, and then exploded exactly 73 seconds later -- taking with it the lives of all seven astronauts on board, including the first citizen and teacher to fly into space, Christa McAuliffe. ...
In its nearly 30-year history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the Challenger exploded duri...
Space shuttle Challenger exploded just 73 seconds after liftoff on Jan. 28, 1986, changing NASA's space program forever
It was the first in-flight disaster in 56 manned space missions and the first to claim the lives of Americans. Cries of horror went up at viewing sites along the coast when the shuttle exploded at 10:39 am Chicago time. STS-51-L Challenger at liftoff ...
FOCUS: STORM CLOUDS AT NASA NOT SINCE THE SPACE SHUTTLE CHALLENGER EXPLODED IN 1986 HAS NASA HAD SUCH A BAD YEAR. HAS THE BUDGET-CUTTING SEVERELY HAMPERED THE SPACE AGENCY, OR ARE THE PROBLEMS MERELY A STRING OF BAD LUCK? EITHER WAY, AT LEAST ONE OF THE ASTRONAUTS IS LEERY ABOUT HIS ...
On this day in history, Jan. 28, 1986, the space shuttle Challenger — scheduled for a routine launch from Cape Canaveral in Florida — exploded after just 73 seconds in flight, killing all seven Americans on board.
克里斯塔希望能激起人们的兴奋感并且interest in the space programme.重新唤起人们对于太空计划的兴趣。Sadly, she never came back to her classroom again, as the可悲的是,她再也没有回到她的课堂,航天飞shuttle exploded just over a minute after taking off in Florida and all机在佛罗里达起飞一分多钟后就...
Space ShuttlePareto's lawagilitymodularityestimation techniquessafety marginsagradual improvementEditorial. Pays tribute to Christa McAulffe, the educator aboard the space shuttle Challenger that exploded in 1986. Lesson derived from the tragedy; Life of...