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【多选题】
Nozzles that capable of implementing thrust vectoring technology includes: ____.
A.
Binary thrust vectoring nozzle
B.
Axisymmetric thrust vectoring nozzle
C.
Adopts baffle behind the nozzle
D.
Steerable vertical take-off and landing nozzle
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【单选题】The thrust generated by propellers of turboprop engines took ____ of the total thrust.
A.
10%
B.
50%
C.
75%
D.
90%
【多选题】Compared with piston engines, the main advantages of turboshaft engines are: ____.
A.
Low fuel consumption
B.
High power
C.
Light weight
D.
Low noise
【单选题】When a new mathstopic is introduced,
A.
Astudents answer questions on the board.
B.
Bstudents rely entirely on the textbook.
C.
Cit is carefully and patiently explained to the students.
D.
Dit is usual for students to use extra worksheets.
【单选题】The compression of air is finished in the ____ of ramjet.
A.
Intake ducts
B.
Compressor
C.
Turbines
D.
Nozzle
【多选题】The characteristics of ramjet includes: ____.
A.
Complex structure
B.
Inefficient when the aircraft is flying at low speed
C.
Good intake and compression performance when the aircraft is flying at low speed
D.
Usually used in combination with other types of engines
相关题目：
【单选题】The thrust generated by propellers of turboprop engines took ____ of the total thrust.
A.
10%
B.
50%
C.
75%
D.
90%
【多选题】Compared with piston engines, the main advantages of turboshaft engines are: ____.
A.
Low fuel consumption
B.
High power
C.
Light weight
D.
Low noise
【单选题】When a new mathstopic is introduced,
A.
Astudents answer questions on the board.
B.
Bstudents rely entirely on the textbook.
C.
Cit is carefully and patiently explained to the students.
D.
Dit is usual for students to use extra worksheets.
【单选题】The compression of air is finished in the ____ of ramjet.
A.
Intake ducts
B.
Compressor
C.
Turbines
D.
Nozzle
【多选题】The characteristics of ramjet includes: ____.
A.
Complex structure
B.
Inefficient when the aircraft is flying at low speed
C.
Good intake and compression performance when the aircraft is flying at low speed
D.
Usually used in combination with other types of engines
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