問題詳情
【題組】42Which of the following is NOT mentioned by NASA as the requirements for a successful interstellar spaceship program?
(A) lighter and more efficient fuel
(B) extremely fast engines capable of maximum attainable speeds
(C) new computers to enhance the flying speed and internal systems
(D) new technology to power the internal system
參考答案
答案:C
難度:適中0.519231
統計:A(4),B(13),C(27),D(7),E(0)
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