420.Every time he comes up with a new idea, he writes it down in his notebook ( )

517.Drill a hole at the intersection of the two lines( )

516.姿态指示仪指示姿态 ( )

515.The manufacturer＇s masthead , publication title , aircraft model and issue and revision dates or codes may be omitted from individual pages at the option of the manufacture in small, permanently bound manuals( )

514.在钻孔之前,要确保钻头的尖端是锋利的( )

513.It is not necessary to include a relocated chapter table of contents if the total chapter has been relocated, but the subsystem relocations should then be identified in the table of contents at the front of the book( )

512.每一节从右边页面开始。 ( )

511.The schematic diagram should tend to deal with an overall system rather than with subsystems , e , g , the air conditioning system rather than a conpress or boower within the air conditionging system( )

510.Wheel axle( )

509.John will call you in advance to tell you when and where to meet( )

508.Go-around arms when the airplane is in the air and, one of these conditions is true: Glideslope mode is active The trailing edge flaps are not up ( )