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[audioFiles]audio_eufm_103(20106)[/audioFiles]A、It carries its own oxygen suppl
[audioFiles]audio_eufm_103(20106)[/audioFiles]A、It carries its own oxygen suppl
游客
2024-02-13
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问题
选项
A、It carries its own oxygen supply.
B、It does not need any oxygen during the flight.
C、It can produce oxygen during the flight.
D、It extract oxygen from the air that flows through the engine.
答案
D
解析
文中对比了三种动力方式:jet engine,rocket engine和special engine。文章后半部分谈到 special engine从进入引擎的空气中获取氧气,因此答案是D。
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