619.The area at which two surfaces or edges touch or are attached.

A. 　两个关断螺栓是可调节的。

B. 　两个止动螺栓是可校准的。

C. 　两个止动螺栓是可调节的。

A. 　ALTITUDE

B. 　DECREASE

C. 　INCREASE

A. 　Before you accept the unit, do the functional test procedure.

B. 　Before you accept the unit, do the operational test procedure.

C. 　Before you accept the unit, do the specified test procedure.

A. 　Calibrate the hygrometer to the celsius scale.

B. 　Calibrate the thermometer to the celsius scale.

C. 　Calibrate the clinometer to the celsius scale.

A. 　was not; was

B. 　does not; are

C. 　did not; was

A. 　 RECORD

B. 　 COPY

C. 　 ENTER

A. 　does not permitted to

B. 　not permitted to do

C. 　permit to do

A. 　 In flight,Flight Idle Power required for the engine to operate at slowly
speed is an important condition to ensure good engine operation and
airplane handing characteristics.

B. 　 Flight Idle Power is the power required for an engine to operate at
a minimum speed during flight to ensure satisfactory engine operation and
aircraft handing characteristics.

C. 　 In flight,good engine operation and aircraft handing characteristics
are guaranteed to provide the engine with Flight Idle Power needed to
operate at the lowest speed .

A. 　was not; was

B. 　does not; are

C. 　did not; was

A. 　GO

B. 　ENTER

C. 　FALL