158、Make sure that the two spigots at the bottom of the unit engage.

A. 　 maintenance information need to be continually updated

B. 　 maintenance information needs to continually updated

C. 　 maintenance information needs to be continually updated

A. 　 如果左 CMC 故障,会自动转换使右 CMC 提供输出。

B. 　 如果左 CMC 失效,会自动打开电门,由右 CMC 提供输出。

C. 　 如果左 CMC 掉落,自动电门会使右 CMC 提供输出。

A. 　 The external diameter must be concentric to the internal diameter

B. 　 The outer radius and the inner radius must be suitable.

C. 　 The exterior 'radius must be installed on a common shaft with the interior radius.

A. 　要先安装螺钉(10),才能安装盖组件(9

B. 　要拆下盖组件(9),首先要拆下这四个螺钉(10)

C. 　要拆下螺母(9),首先要拆下这四个螺栓(10

A. 　 The rudder is a replaceable airfoil which is mounted to the vertical fin and is used for yaw control.

B. 　 The rudder is a removable wing which is fixed to the vertical stabilizer and is used for pitch control.

C. 　 The rudder is a removable airfoil which is attached to the vertical stabilizer and is used for yaw control.

A. 　 The specification of major components maintenance, troubleshooting inspection and repair data is
according to the format of the manufacturers.

B. 　 The major components manufacture s need to prepare all maintenance related data as specified format.

C. 　 The maintenance, troubleshooting inspection and repair data in to be prepare in the format of this
specification by the major components manufacturers

A. 　涡轮发动机速度表通常以涡轮最大转速的百分比来测量转速。

B. 　涡轮发动机转速表通常以涡轮额定最大转速的百分比来测量转速。

C. 　涡轮发动机速度计通常以涡轮转动的最大速度的百分比来衡量。

A. 　It is very important to explain the fuel safety precautions.

B. 　 It is very important to obey the fuel safety precautions.

C. 　 Combining the fuel safety precautions is very important.

A. 　故障隔离使用识别、寻找和纠正任何发生在飞机上的故障的方法,并提供所需的信息。

B. 　故障隔离提供信息,这些信息用于定位、寻找和纠正任何发生在飞机上的故障。

C. 　故障隔离提供信息,这些信息用于识别、定位和纠正任何可能会发生在飞机上的故障。

A. 　 On each page of an original document,the words "original issue”, rather than the actual date of issue, may
be used. Used the title page and the table of contents page before each section of the file must be marked
with the actual release date after the "original release."

B. 　AOn each page of an original documents, the words "original issue “maybe used. The actual release date is
in the file and must be standard on the title page and the table of contents page before each section.

C. 　 The actual issue date should be marked on each page of the original document. An alternative might be
to use the term "original issue" instead. To do so, the title page of the document and the table of contents
page at the beginning of each chapter must be marked "original publication.