179.If the voice message “TERRAIN,TERAIN” is heard, inwhich mode and configuration are you ?

　In mode 2A, with flaps down or in the glide slope beam.

　In mode 2B, with flaps down and in the glide slope beam.

　In mode 2A, with flaps not down and not in the glide slope beam.

正确答案：C

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482.How are the smoke detectors connected to the SDCU ?

481.Which warning lights are triggerd in case of an avionics smoke detection ?

480.How can the avionic smoke detector be tested ?

479.The cargo loading control box being supplied, which latch ensures the energization of the PDUs ?

478.How is the PDU energized ?

477.How many Unit Load Devices ( ) can be loaded in the FWD cargo compartment?

476.Where are the rapid decompression panels installed?

475.Form where is the inflation cylinder checked ?

474.Where must the pressure indication be?

473.In the SYSTEM STATUS mode,what is the MAINTENANCE mode use for?