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Take off under strong turbulence conditions, in the maximum limit of VFE-5 conditions, the crew must wait until the speed reaches（ ）, before the flap can be retracted.【单选题】

Clear air turbulence often occurs at an altitude of ( ) meters.【单选题】

When use of RVR200 meters takeoff standard, need to meet follow requirement:RVR≥200 meters in the touchdown section, RVR≥200 meters in the middle section, and both RVRS are to control RVR【单选题】

In order to effectively use radar detection and avoid thunderstorms, The PM's ND usually select 160 nautical miles or lower range, the PF's ND usually select ( ) nautical miles or lower range:【单选题】

In the thunderstorm cloud, turbulence is most intense where the internal updraft and downdraft mix.【单选题】

Flying around the thunderstorm from witch direction？【单选题】

When flying around the thunderstorm, select the weather radar gain to ( ) :【单选题】

During taking off, when the speed exceeds ( ) knots,the predictive wind shear voice warning is inhibited.【单选题】

During heavy rain weather operation, the engine start selector should be set to ( ) .【单选题】

Heavy rain during the day, the night of the case of moderate rain, such as can not establish enough visual reference, prohibited takeoff? 【单选题】