969、Put the aircraft back to its initial configuration.

A. 　为了展示简单性和易懂性,复杂系统应该按系统功能划分而不是按主系统原理图。

B. 　为了便于展示和理解,复杂的系统应被划分为系统功能图,而不是整体的主原理图。
c、为了简化显示和便于理解,复杂系统应被分为系统功能区而不是整体系统原理图。

A. 　 Energy is never created or lost it's a physics law that it just changes from one kind of energy to another
and in our case, motion energy turns into heat energy when we brake.

B. 　 lt is a law of physics that energy is never produced or destroyed. It just changes from one type of energy
into another type. In our example the kinetic energy changes into heat energy during braking.

C. 　 Energy is never produced or lost, it's a physical law that it just transfers from one kind of energy to another
and in our case, moving energy turns into heat energy when braking.

A. 　扭矩测量仪是一个显示螺旋桨传动轴可用输出扭矩的指示系统

B. 　 扭矩计可以显示传动轴的输出扭矩

C. 　指示系统必须显示扭矩计传动轴的可用输出扭矩

A. 　在升降飞机时,要确保操作升降设备的人员接受过恰当的培训并具备相应的知识

B. 　在对飞机进行平衡、顶升或放下时,确保人员接受过升降设备的培训并掌握相关技能

C. 　当水平放置飞机或顶升飞机时,确保操作升降设备的人员学过培训知识

A. 　 绕其轴线旋转此曲柄。

B. 　 绕其圆心旋转此杆。

C. 　 绕其轴线旋转此轴。

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. 　 English is not often the mother language of the readers of technical files.

B. 　 English is not often the private language of the readers of technical books.

C. 　 English is not often the required language of the readers of technical pamphlet.

A. 　 Only the certified personnel can complete the modification or repair to the aircraft.

B. 　 Pay attention that inspections or maintenance work ought to be carried out by mechanics.

C. 　 Modifications or repairs to aircraft should be achieved by releasing staff.

A. 　组装总管

B. 　安装连料

C. 　安裝总管

A. 　“飞机性能”中的每一项均应对与数据相关的重要条件进行说明

B. 　每一项飞机性能都包含对重要条件和数据的说明。

C. 　“飞机性能”中的每一条目均应对数据及其重要条件之间的关联性进行说明。