問題詳情
【題組】(2)A radical breakthrough in aviation technology could lead to the development of aircraftcapable of entering and re-entering the Earth’s atmosphere. By orbiting at 300kilometres above the Earth’s surface, the aircraft could be capable of flying betweenLondon and Sydney, Australia, in a little over one hour.
參考答案
答案：C
難度：困難0.366667
統計：A(16),B(33),C(33),D(1),E(0)
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