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【单选题】
The overload of a UAV when it touches the arresting net should not lager than ____.
A.
3g
B.
4g
C.
5g
D.
6g
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【多选题】The UAV of landing and recovery methods including: ____.
A.
Helicopter aerial recovery
B.
"sky hook" recovery
C.
Parachute recovery
D.
Tail hook arresting recovery
【多选题】11&12.Which TWO facilities at the leisure club have recently been improved?
A.
the gym
B.
the tracks
C.
the indoor pool
D.
the outdoor pool
E.
the sports training for children
【单选题】When determine the launch window for Halley’s Comet probe should chose: ____.
A.
The annual launch window
B.
The monthly launch window
C.
The diurnal launch window
D.
Zero window
【多选题】以下关于人员类别的表述，正确的有（ ）。
A.
新增或修改人员类别档案时，只能选择末级的人员类别。
B.
人员类别被使用后，可以再增加下级子类别。
C.
末使用的人员类别可直接删除。
D.
人员类别的档案编码是唯一的，且必须符合编码规则。
【多选题】The conditions should be considered when determine the launch window include: ____.
A.
Preparation situation of carrier rocket
B.
The ground observation and tracking condition
C.
Orbit operation requirement
D.
Return location