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
詳解 (共 2 筆)
未解鎖
只有提到新動力（a new propul...
阿摩線上測驗
登入
