A safety margin can be added to provide the option to stop on the runway in case of a____takeoff.
A. failed
B. unsuccessful
C. headwind
D. rejected
查看答案
In most such aircraft, any engine failure results in a rejected takeoff as a matter of course, since even____the end of the runway is preferable to lifting off with insufficient power to maintain flight.
A. passing
B. skidding off
C. overrunning
D. missing
在力的作用下,体内任意两点距离不变的物体称为刚体。
A. 对
B. 错
平衡即是静止,所以静力学只研究物体静止时的力学规律
A. 对
B. 错
力是物体间相互的机械作用,所以没有接触不会产生力的作用。
A. 对
B. 错