Phase letter "V" shall be used as a suffix on the cable identification code to identify the ungrounded wire or cable that is in a single-phase system.

A. 通过活门的流体必须是可见的。

B. 通过活门的油液必须是透明的。

C. 通过活门的流体必须是连续的。

A. 使用清洁剂ARDR0X6025或替代物。

B. 使用清洁剂ARDR0X6025或等效物。

C. 使用清洁剂ARDR0X6025或同等重量的物品。

A. It changed the volts in the transmitter

B. It changes the electrical currents in the transmitter.

C. It changed the electronic currents in the reciever.

A. The Boeing 747 symbolizes the beginning of a new ear in air transport.

B. The Boeing 747 is the first type of airplane in air transport.

C. Modern air transport started from the Boeing 747.

A. During the system test, the PSU nitrogen mask doors will open and the nitrogen masks will appear in the nitrogen box if the door test stop or the tapes are not installed.

B. If the door test stop or the masking tape is not installed, the doors of the PSU oxygen box will open and the oxygen mask will remain in the original position.

C. The PSU oxygen box doors will open and the oxygen masks will go out of the oxygen boxes during the functional test if you do not install the door test stop or the masking tape.

A. 飞机已按照制造商要求或同等标准进行检查。

B. 飞机已按照运营人要求或同等标准进行维护。

C. 飞机已按照制造商建议或同等标准进行维护。

A. 给出了允许使用的动词，不要使用未列出的动词形式。

B. 动词以批准的表格列出,不要使用表中未列出的动词。

C. 给出了动词允许使用的形式。不要使用未列出的动词形式。

A. This software is only acceptable by the assigned handling system.

B. This software is compatible only with the specified operating system.

C. This software only corresponds to its designed operating system.

A. Collect all maintenance records for the part PNxxxx.

B. Compile all maintenance logs for the component PNxxxx.

C. Collect all flight logs for the component PNxxxx.

A. These tests need no special equipment or facilities except those installed on the aircraft, and are like the tests performed by flight crews.

B. These tests need some special equipment or facilities that are not installed on the aircraft. And these tests are the same to the tests performed by flight crews.

C. These tests need special equipment or facilities that are installed on the aircraft, and are identical with the tests performed by flight crews.