活塞式发动机改变功率时要操纵变距杆和油门杆，增加功率时下述几种方法中比较好的方法是（）。

The five major component parts of an airplane are （ ） ．

The airport runway marking is colored （ ）, taxiway and aircraft parking marking is colored （ ）.

A runway used for non-precision instrument approach is usually marked by （ ） ．

A basic VFR runway is marked by （ ） ．

A displaced threshold is marked by （ ） ．

The feature of tri-color VASI is （ ） ．

When on the proper glide path of a 2-bar VASI, the pilot will see the near bar as （ ） and the far bar as （ ） ．

3-BAR VASIS, according to the installation position, is divided into three cross bars: （ ）.

Visual approach slope indicator system (VASIS), according to the installation position, is divided into （ ） ．

The normal higher and lower glide path angles for a 3-bar VASI are （ ） respectively.