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The Hyper-X broke the record because What kind of engine did the Hyper-X use?
The Hyper-X broke the record because What kind of engine did the Hyper-X use?
admin
2009-05-21
72
问题
The Hyper-X broke the record because
What kind of engine did the Hyper-X use?
选项
A、A jet engine that carries its own oxygen supply.
B、A jet engine that uses no oxygen.
C、A scramjet engine that doesn’t carry its own oxygen supply.
D、A rocket engine that carries its own oxygen supply.
答案
C
解析
文章第二段和第三段最后一句话的内容告诉读者,超音速飞机之所以能达到如此的超音速,是因为它使用的发动机是超音速冲压式喷气发动机。超音速冲压式喷气发动机和火箭的发动机一样快,但却不需要携带自身的氧气供给。
转载请注明原文地址:https://kaotiyun.com/show/GYhd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
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职称英语理工类C级
职称英语
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