__________ are those with no specialized training, who look for the big picture instead of complex details. They expect technical data to be translated into words most people understand.
The most emphatic location in a paragraph is the __________ sentence in a paragraph.
__________ is like trying new paint: you do not know whether you like the color until you see it on the wall.
The purpose of my document is to __________ company employees of the new absentee policy and to __________ them on how to follow the procedures properly.
机翼上的升力实质是机翼上下翼面所产生的压强差。
迎角是指翼弦与相对气流速度之间的夹角。
飞机的升力会随着迎角的不断增加而增大。
飞机飞行的高度越低，飞行速度越大，机翼上的升力就越大。
机翼翼型升力始终随着攻角的增大而增大。
前缘后掠角是指机翼前缘线与垂直于翼根对称平面的直线之间的夹角。
与低亚声速飞机相比，超声速飞机的展弦比较小。
通过采用超临界翼型设计可以使得机翼的临界马赫数明显提高。
对称翼型的零升迎角通常都小于零度。
影响升力的因素的有____。
诱导阻力与____等因素有关。