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【简答题】
人机并行一般3个月，最长不超过（ ）。
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举一反三
【单选题】What is Rutan’s biggest achievement according to the video?
A.
He ended the government’s monopoly on space travel.
B.
He founded Virgin Galactic the world’s first spaceliner.
C.
He won a lot of trophies by model planes.
D.
He successfully attracted investment from the richest man to the space industry.
【简答题】What did Paul Allen ’ s money mean to Rutan ’ s engineers?
【简答题】What ’ s Rutan ’ s next vision?
【单选题】What ’ s one engineering breakthrough mentioned about Rutan ’ s spaceship?
A.
It ’ s very light-weight.
B.
It ’ s custom-made from scratch by a very small company.
C.
Feathers are glued to the spaceship to enable safe reentry.
D.
It can reposition itself like a shuttlecock in flight.
【简答题】What ’ s the deal between Branson and Rutan?
【单选题】What's one engineering breakthrough mentioned about Rutan's spaceship?
A.
It's very light-weight.
B.
It's custom-made from scratch by a very small company.
C.
Feathers are glued to the spaceship to enable safe reentry.
D.
It can reposition itself like a shuttlerock in flight.
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