大学职业资格刷题搜题APP
创建自己的小题库
搜索
【单选题】
Normal flying height of a spacecraft is ____.
A.
0~20Km
B.
20~50Km
C.
20~100Km
D.
Higher than 100Km
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报
参考答案：
举一反三
【多选题】Near space vehicle includes: ____.
A.
Solar-powered plane
B.
Stratospheric airship
C.
F-22 aircraft
D.
X-51A hypersonic aircraft
【单选题】Aircraft lighter than air lifts off by ____.
A.
Static buoyancy generated by air
B.
Aerodynamics
C.
Hot air
D.
Helium
【多选题】Main differences between balloon and airship are ____.
A.
Configuration
B.
Motive power
C.
Direction Control
D.
Filling gases
相关题目：
【多选题】Near space vehicle includes: ____.
A.
Solar-powered plane
B.
Stratospheric airship
C.
F-22 aircraft
D.
X-51A hypersonic aircraft
【单选题】Aircraft lighter than air lifts off by ____.
A.
Static buoyancy generated by air
B.
Aerodynamics
C.
Hot air
D.
Helium
【多选题】Main differences between balloon and airship are ____.
A.
Configuration
B.
Motive power
C.
Direction Control
D.
Filling gases
参考解析：
题目纠错 0
发布
