A、 It is the responsibility of the operator to ensure that alternative tools or equipment can work well and are dangerous to the parts and personnel as the ones specified in the procedure if you use them.
B、 If alternative tools or equipment are used, the operator must ensure that they can play the same role and are as safe as the tools or equipment specified in the procedure to the parts and personnel.
C、 If the manufacturer can make sure that alternative tools or equipment can meet the requirement and are as safe to the parts and equipment as the ones specified in the procedure, you can use them.
答案：B
A、 It is the responsibility of the operator to ensure that alternative tools or equipment can work well and are dangerous to the parts and personnel as the ones specified in the procedure if you use them.
B、 If alternative tools or equipment are used, the operator must ensure that they can play the same role and are as safe as the tools or equipment specified in the procedure to the parts and personnel.
C、 If the manufacturer can make sure that alternative tools or equipment can meet the requirement and are as safe to the parts and equipment as the ones specified in the procedure, you can use them.
答案：B
A. Use the tube if it＇s worked into 3.3 feet long.
B. Use a tube whose length is 3.3 feet.
C. The tube which is used is 3.3 feet length.
A. Acquire the flight data from the recorder.
B. Eliminate the tape about the information after flight.
C. Remove a recording of flight data from the tape.
A. Retesting and reviewing test results are optional due to discrepancies in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
B. It is very important to do the test again and confirm test results because of differences in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
C. It is mandatory to retest and evaluate test results to make sure the differences in the fuel/water sample and the ability of the detection kits to witness the level of microbial growth.
A. Take care to the absence of leakage during the execution of each step in the valve test.
B. Throughout the valve test, verify that there are no obvious signs of leakage at each step.
C. Make certain that no leakage is present as you proceed with each step of the valve test.
A. Perform these checks without any schedule.
B. Perform these checks immediately.
C. Do these checks regularly.
A. The Maintenance Manual is supplied by the manufacturer at the time of aircraft delivery.
B. When delivering the aircraft, the Maintenance Manual is provided to the buyer.
C. The Maintenance Manual is prepared by the manufacturer before the aircraft is delivered.
A. Airplane primary data should be displayed neither in graphs and tables.
B. Airplane behavior data shall be predicted in both graphical and tabular formats.
C. Aircraft performance parameters can be represented graphically or in tables.
A. In any process, the velocity is not large.
B. Do not increase this speed in any operation.
C. In any operation, the speed can not be greater than this value.
A. Vertical pages instead of horizontal are preferred for all types of publication.
B. Horizontal pages are more preferable for all types of publication than vertical ones.
C. Both vertical and horizontal pages are rather preferable for all types of publication.
A. Make sure the drain hose＇s open end is oriented in align with the structure.
B. Direct the open end of the drain hose away from the storage construction.
C. Ensure that the open end of the drain hose faces away from the structure.
