选出填入下列空白处最恰当的一项是:( )
.专家们认为,传统的教学方式必须( ),才能适应当前形势发展的需要。
A.变革
B.改变
C.改革
D.变动
C
无
合成氨生产工艺中,怎样选择排放惰性气体位置?
When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear().
A.Non-follow-up
B.Rudder adjustment
C.Weather adjustment
D.All the above may be activated