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【多选题】
The lunar probes adopt landing leg type soft landing are: ____.
A.
"Chang'e-3"
B.
"Phoenix"
C.
"Apollo" spacecraft
D.
"Curiosity"
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参考答案：
举一反三
【多选题】The main branches of aerodynamics include: ____.
A.
Computational aerodynamics
B.
Experimental aerodynamics
C.
Structural aerodynamics
D.
Aerodynamics of prototype’s flight test
【单选题】In the holding chamber, the carbon dioxide
A.
changes back to a gas.
B.
dries the dishes
C.
is allowed to cool.
【单选题】Nowadays computer and computer technology has completed ____ of the work in aircraft design and manufacture.
A.
More than 50%
B.
More than 60%
C.
More than 70%
D.
More than 80%
【单选题】CFD could be a substitution of wind tunnel tests under ____.
A.
High angle of attack situation
B.
Normal wind tunnel tests
C.
Separate flow situation
D.
Complex flowing control situation
【单选题】At the end of the cleaning process, the carbon dioxide
A.
is released into the air.
B.
is disposed of with the waste.
C.
is collected ready to be re-used.
相关题目：
【多选题】The main branches of aerodynamics include: ____.
A.
Computational aerodynamics
B.
Experimental aerodynamics
C.
Structural aerodynamics
D.
Aerodynamics of prototype’s flight test
【单选题】In the holding chamber, the carbon dioxide
A.
changes back to a gas.
B.
dries the dishes
C.
is allowed to cool.
【单选题】Nowadays computer and computer technology has completed ____ of the work in aircraft design and manufacture.
A.
More than 50%
B.
More than 60%
C.
More than 70%
D.
More than 80%
【单选题】CFD could be a substitution of wind tunnel tests under ____.
A.
High angle of attack situation
B.
Normal wind tunnel tests
C.
Separate flow situation
D.
Complex flowing control situation
【单选题】At the end of the cleaning process, the carbon dioxide
A.
is released into the air.
B.
is disposed of with the waste.
C.
is collected ready to be re-used.
参考解析：
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