355. Because airplanes are intended to have long lives, their flight safety must be assured

Since airplanes usually have long service lives, their flights are surly safe.

It is mandatory to ensure the flight safety for the long lives of airplanes.

Despite the long lives of airplanes, their flight safety cannot be assured.

正确答案：B

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3008. Wind the tape on the reel

3007. IF THE SCRATCH DOES NOT( ) THE PROTECTIVE LAYER, THE UNIT IS SERVICEABLE

3006. LET THE VENT VALVES( ) OPEN

3005. the unit of measure in the manual must be consistent where practical

3004. Distances shown are based on zero wind

3003. The rudder has a maximum deflection of 29 degrees left and 29 degrees right Stops on the forward quadrant limit the input to the rudder PCUs

3002. Carry out permanent repair by filling damaged area with potting compound BMS-287 with reference to SRM

3001. Lock the pulley with the rigging pin

3000. What is the meaning of ‘Propeller Governor’

2999. This chapter includes engaging, supplemental, computing, amplifying, controlling, actuating and warning devices