391.What happens when S/F configuration is 1+F and the CAS reaches 210 kont ?

　Flap retract automatically to 0 and the new S/F configuration is 1.

　Flap extend automatically because the speed is too high.

　The alpha lock function is engaged because the CAS is too high.

正确答案：A

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270.Are the return lines shut off when the parking brake is applied ?

269.What is the purpose of the hydraulic fuses ?

268.What happens when a wheel speed decreases below 0.87 times the reference speed ?

267.When does the BSCU provide anti-skid control ?

266.What are the auto brake arming conditions ?

265.In which mode is progressive pressure sent to the brakes 2 seconds after ground spoilers deployment?

264.How can the parking brake be hydraulically powered ?

263.In case of normal braking system failure, how is alternate braking applied ?

262.How is inflight braking initiated ?

261.which hydraulic system powers normal braking ?