在飞行中，需要及时引起飞行机组注意，但不需要立即执行的情况由（）颜色的指示灯指示。

A ceiling is defined as the height of the （ ） ．

（ ） is not included in a convective SIGMET.

When temperature rises, the takeoff weight and rolling distance will （ ） respectively.

SIGMETS are issued as a warning of weather conditions potentially hazardous （ ） ．

（ ） warn of weather hazards which mainly concern light aircraft.

When penetrating turbulent air, the pilot is expected to （ ） ．

Of the various aircraft icing, the one that has the greatest impact on flight is （ ）.

Wingtip vortices created by large aircraft tend to （ ） ．

The greatest wake turbulence danger is produced by large aircraft operating at （ ） ．

In weather forecasts or pilot reports, aircraft structural icing is normally classified as （ ） ．