题目内容
In Class A airspace, all operations must be conducted under IFR or SVFR and are _______ to ATC clearance.
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Wind shear can subject an aircraft to violent updrafts and downdrafts as well as ________ changes to the horizontal movement of the aircraft.
While wind shear can occur at any altitude, low-level wind shear is especially hazardous due to the ________of an aircraft to the ground.
Low-level wind shear is commonly ________ with passing frontal systems, thunderstorms, and temperature inversions with strong upper level winds.
During a wind shear situation, the effects can be ________ or very dramatic depending on wind speed and direction of change.
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