A、 Schematic diagram designers may make a compromise so as to add more details to make the diagram self-explanatory and keep its simplicity at the same time for ease of reading and understanding.
B、 In designing schematic diagrams, it may be necessary to pay attention to both detail that is necessary to make the diagram self-explanatory, and simplicity that is essential for ease of reading and understanding.
C、 Detail makes the diagram self-explanatory. Simplicity makes it easy to read and understand. It is necessary to consider both of them and make a compromise if needed when designing schematic diagrams.
答案：C
A、 Schematic diagram designers may make a compromise so as to add more details to make the diagram self-explanatory and keep its simplicity at the same time for ease of reading and understanding.
B、 In designing schematic diagrams, it may be necessary to pay attention to both detail that is necessary to make the diagram self-explanatory, and simplicity that is essential for ease of reading and understanding.
C、 Detail makes the diagram self-explanatory. Simplicity makes it easy to read and understand. It is necessary to consider both of them and make a compromise if needed when designing schematic diagrams.
答案：C
A. Survey the opening for fractures that often avoid inspection.
B. Inspect the opening for cracks that originate from its corners.
C. Inspect the opening for blemish that often covers its corners.
A. Values in the limited range should not include parameters or variables not mentioned in the manual.
B. The specification of a given range of values in the manual excludes parameters and variables.
C. The range of values should not exceed the parameters or variables given in the manual.
A. Flash the screen with hot water.
B. Fresh the filter with hot water.
C. Rinse filter in hot running water.
A. The exit doors are mainly used for passenger boarding.
B. The exit doors are only used for evacuation.
C. The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.
A. The positive pressure relief valves are fail safe devices. If the aft outflow valve cann’t be closed, these positive pressure relief valves bleed fuselage pressure overboard.
B. The positive pressure relief valves are fail safe devices. If the positive pressure relief valves fails closed, these aft outflow valve bleed fuselage pressure overboard.
C. The positive pressure relief valves are fail safe devices. If the aft outflow valve fails closed, these positive pressure relief valves bleed fuselage pressure overboard.
A. When some new kind of situation occurs, the operator should communicate openly with the manufacturer. The manufacturer should supply the operator solid assistance.
B. When the new situation gets worse, it should build the open communication between the operator and manufacturer. The operator claims the situation to get the feedback from the manufacturer.
C. When something new happens, open interconnection should exist between the manufacturer and the operator. The operator should report to the manufacturer to obtain effective discount.
A. The filter must be replaced before putting new oil in the system.
B. The replacement of the filter is optional before refueling the system.
C. The filter can not be replaced unless you put new oil in the system.
A. Put the bell crank and shaft with identification to prevent improper installation.
B. Identify the bell crank and shaft with marks to prevent wrong installation.
C. Put the bell crank and shaft with identification to prevent wrong installation.
A. Use the rigging pin to lock the pulley.
B. Use the pulley to lock the rigging pin.
C. The rigging pin should be locked by the pulley.
A. Inspect the fairing completely.
B. Do a detailed visual inspection of the fairing.
C. Inspect the whole fairing.
