483、To find damage on wires, rub a cloth along them.

1005、The system design makes sure that two AC power sources can not supply power to the same transfer bus at the sametime.

1004、This will be limited to the forward and aft edges of the windshield due to the bottom edge not being visible and the topedge having the busbar in the way.

1003 、Airworthiness Directive is procedure that must be used when performing maintenance on an aircraft.

1002、The system interface circuits adapt to the physical properties of the connected systems.

1001、In a high concentration,this material is poisonous.

1000、The flight crew can use the flight director commands to control the attitude of the airplane.Be1%

999、Do test A as an, alternative to test B

998、Care must be taken not to damage the firewall cover.

997、The topic sentence is then first and most important sentence in a paragraph.

996、The laptop has three primary parts.