单项选择题

According to the selection, the basic concern of the inertial guidance system is

A．space in three dimensions.
B．poor visibility and meteorological conditions.
C．the altitude and position of a vehicle.
D．spacecraft productivity.
<上一题 目录 下一题>
热门 试题

单项选择题
Spaceships need an inertial guidance system, but automobiles do not because of
A．the relative speed of the vehicles.
B．the relative size of the vehicles.
C．the relative cost of the vehicles.
D．their different methods of travel.
单项选择题
The inertial platform is mainly used
A．to prevent the ship or plane from moving off course.
B．to send information from the ground control unit.
C．to maintain the speed of the ship or plane.
D．to prevent a change in the systems orientation.
相关试题