The Hyper-X broke the record because What does Werner J, A. Dahm say about the Hyper-X test flight?

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问题 The Hyper-X broke the record because
What does Werner J, A. Dahm say about the Hyper-X test flight?

选项 A、It was unsuccessful because it lasted only 11 seconds.
B、It is a very important event in developing very fast airplanes.
C、It allows people to fly at an altitude of 100,000 feet.
D、It can transport cargo quickly and cheaply to outer space.

答案B

解析答案在第五段的第三句话。Werner J. A. Dahm认为，3月27日那简短的旅程为新型快速飞机奠定了重要的里程碑。据此推断，答案为B。

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