15.Incorrect adjustment of the stop bolts on the rudder pedals can cause damage.

A. 　Before you refuel the aircraft,a small quantity of oil comes out of the vent line.

B. 　When you refuel the aircraft,a small quantity of fuel comes out of the vent line.

C. 　After you refuel the aircraft,a small quantity of fuel comes out of the vent line.

A. 　You do not need to give the return processes in its entirety unless you need to comprehend the system.

B. 　Unless you need to understand the system,fully show the return lines.

C. 　Return procedures need not be shown completely if you need to realize the system.

A. 　此条为视情釆取的预

B. 　此条为必须釆取的预

C. 　此条为建议来取的预防措施,以使中央油箱保持良好状态。建议间隔100天视情执行一次此程
序

A. 　The manufacturers of major components must provide maintenance,troubleshooting,inspection and repair data in the same layout of this specification.

B. 　Themanufacturersofmajorcomponentsislookingforwardtogain maintenance,troubleshooting,inspection and repair data with the same form of this specification.

C. 　manufacturers of major components should provide maintenance,troubleshooting,inspection and repair data with the same format of this specification.

A. 　Where schematic diagrams are complex by virtue of automatic features or articulated controls in the subject system,these characteristics should be pointed by means of explanatory text in the diagram,or in the accompanying text,or both.

B. 　Where schematic diagrams are complex by venture of automatic characters or articulated controls in the subject system,these characteristics should be pointed at by means of apparent text in the diagram,or in the accompanying text,or both.

C. 　where schematic diagrams are complex by virtue of automatic features or interrelated controls in the subject system,these characteristics should be pointed out by means of explanatory text in the diagram or in the accompanying text,or both.

A. 　Never Exceed speed or Mach Number is the speed limit that can never be exceeded at any time.

B. 　Never Exceed Speed or Mach Number is the speed limitation that will be excessively at any time.

C. 　Never Exceed speed or Mach Number is the speed limit that may be surpassed at anytime.

A. 　液压油污染的主要原因是活门失效。

B. 　活门失效的主要原因是液压油污染。

C. 　液压油活门失效的的主要原因是污染。

A. 　When total revisions including left pages,above 60%of the total pages in the manual,a reassure of the manual should be prepared.

B. 　When accumulated revisions including back-up pages,over 60%of the total pages in the manual,a reissue of the manual should be prepared.

C. 　When accumulated revisions including left pages,above 60%of the total pages in die manual,a revise of the manual should be prepared.

A. 　所有分组后资料(数据)应按逻辑逬行分类。

B. 　所有相关资料(数据)应按逻辑方式分组。

C. 　所有己分组的相关资料(数据)应该是有逻辑的。

A. 　When total revisions including left pages,above 60%of the total pages in the manual,a reassure of the manual should not be prepared.

B. 　When accumulated revisions including back-up pages,less than 60%of the total pages in the manual,a reissue of the manual should not be prepared.

C. 　When accumulated revisions including left pages,less than 60%of the total pages in the manua a revise of the manual should not be prepared.