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【多选题】

Image matching navigation technology is suitable for: ____.

A.
Whole accurate navigation
B.
Terminal guidance
C.
Integrated navigation
D.
Terrain clearance and terrain avoidance
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参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】关于应力状态的说法,正确的是

A.
构件的每一点不一定有三个主应力
B.
主平面上的正应力为零
C.
三个主应力按从小到大排列为:
D.
切应力为零的面称为主平面

【单选题】China's HQ-2 Surface-to-Air Missile is a ____ missile.

A.
Beam-riding guidance
B.
CLOS guidance
C.
Non-CLOS guidance
D.
Infra-red homing guidance

【单选题】请分析图示4种应力状态中,哪几种是等价的?

A.
四种均等价
B.
(b)、(c)等价
C.
(a)、(b)、(c)等价
D.
均不等价

【多选题】Which of following is about remote-guided missile? ____.

A.
The missile is relatively simple
B.
Required to detect the information of the target
C.
High maneuverability
D.
Can change the flight path with the command control