下载APP
【单选题】
超音速气流过激坡后后，气流的（ ）
A.
马赫数突然增大，压力突然下降，温度突然上升
B.
马赫数突然下降，压力突然下降，温度突然上升
C.
马赫数突然增大，压力和温度突然下降
D.
马赫数突然下降，压力和温度突然上升
举报
题目标签：超音速
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】第二篇 Flying the Hypert Skies A little airplane has given new meaning to the term "going hyper. " The Hyper-X recently broke the record for air-breathing jet planes when it traveled at a h...
A.
It indicated the birth of a very fast airplane.
B.
It was self-powered, so it lasted only 11 seconds.
C.
It can transportcargo quickly and cheaply to the brink of space.
D.
It is a major milestone in the journey of making a new type of very fast airplanes.