Spacecrafts using semi-ballistic re-entry mode include: ____.
A. “"Shenzhou" series spacecraft
B. "Soyuz" spacecraft
C. "Apollo" spacecraft
D. "Vostok 1" manned spacecraft
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The lunar probes adopt landing leg type soft landing are: ____.
A. "Chang'e-3"
B. "Phoenix"
C. "Apollo" spacecraft
D. "Curiosity"
The main branches of aerodynamics include: ____.
A. Computational aerodynamics
B. Experimental aerodynamics
C. Structural aerodynamics
D. Aerodynamics of prototype’s flight test
The main stages in aerodynamic design method and process of aircraft include: ____.
A. The investigation and demonstration
B. The concept and preliminary design
C. The wind tunnel test and verification
D. The flight tests
The main methods of laminar flow control include: ____.
A. Changing the wing’s configuration
Breath air at the wing’s leading edge
C. Breath air at the wing’s lower surface
D. Breath air at the wing’s upper surface
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