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A wind tunnel can be used to find out ________

2022-08-05 18:17:42 问答库 阅读 170 次

问题详情

A wind tunnel can be used to find out ________.
[A] how fast a plane can rise
[B] how smooth a plane’s surface is
[C] if a plane can land in a very strong wind
[D] if a plane will drop when flying at a low height请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:A

考点: