[题目 ]一航天探测器完成对月球的探测任务后 ,在离开月球的过程中 ,由静止开始沿着与月球表面成一倾斜角的直线飞行 ,先加速运动 ,再匀速运动 ,探测器通过喷气而获得推动力 ,以下关于喷气方向的描述中正确的是 :(A)探测器加速运动时 ,沿直线向后喷气 .(B)探测器加速运动时 ,竖 [Subject] After a space probe completes its mission to the moon, it will start flying from a stationary motion along a straight line that forms an angle of inclination with the surface of the moon. After the space probe has completed its mission to the moon, it accelerates and then moves at a uniform speed. The probe passes through the jet. Acquiring impetus, the following are correct in the description of the direction of the jet: (A) When the detector accelerates, it moves backwards in a straight line. (B) When the detector accelerates,