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

（ ） 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 （ ） ．

If encountering cumuliform clouds and suspecting icing conditions, the best action by the pilot would be （ ） ．

When encountering icing in stratiform clouds, the pilot can expect to （ ） ．

When taking off after a large jet takes off, the pilot is expected to （ ） ．

When taking off after a large jet lands, the pilot is expected to lift off （ ） to avoid possible wake turbulence.