921、In the event a page must be added after the /initial printing, use/ the number of preceding page with a
letter suffix added fer the added page( )e.g. page1 6A,1-6B,

A. 　 lf they fail, temporary damage can occur.

B. 　 lf they drop, permanent injury can occur.

C. 　 lf they fall, permanent damage can occur

A. 　应建立开放的沟通渠道,使运营人能够在出现新问题时及时告知制造商,而制造商能够作出回应,为运营
人提供切实帮助。

B. 　运营人应在出现新问题时告知制造商建立开放的沟通渠道,制造商也应该及时作出回应并向运营人提供切
实帮助

C. 　运营人应建立开放的沟通渠道,并在新问题出现时告知制造商,要求制造商作出回应并为其提供切实帮助。

A. 　紧握住缸体

B. 　轻轻握住圆柱体

C. 　紧握住作动筒

A. 　指示器显示储压器已满。

B. 　仪表显示油箱已满

C. 　指示器显示油箱已满

A. 　所有在此区域人员必须使用护目镜。

A. 　 The fragile connector is usually closed. 易碎连接器通常是闭合的

B. 　 The quick-break switch is normally in the off position.

C. 　 The frangible fitting is a normally closed valve.

A. 　 The procedures should give the address of the facility and time the program will be rechecked to find out if it is coherent enough for the type of maintenance being performed at the facility.

B. 　 The program shall be checked to decide if it is updated and sufficient for the type of maintenance being performed at the facility. The interval of the checks shall be stated in this procedure

C. 　 The program will not be performed at the facility if this procedure shows outdated and inadequacy information for the the type of maintenance.

A. 　如果不能安全执行此地面移动操作,警告不要再次尝试它

B. 　如果不能安全执行此操作,应提供警告不要再次尝试此操作。

C. 　如果不能安全执行此操作,应提供警告不要尝试此操作。

A. 　一旦设计和批准,必须建立彻底的维修程序

B. 　一旦设计和授权,必须建立全面的勤务工艺

C. 　一旦设想和批准,必须建立全面的修理程序

A. 　快速定点必须与航迹的点吻合。

C. 　紧固件必须和滑轨内的孔对准。