Select the hydraulic system that you will pressurize.

A. You may use alerts and cautions to emphasize some important places.

B. The important parts must be highlighted by using the warnings, cautions and notes.

C. Warnings, cautions and notes may be used to highlight or emphasize important points.

A. Each door has flexible seals at its structure interface which protect the metal interfaces from damage by the airflow.

B. Each door has flexible seals at its structure interface which protect the metal interfaces from no damage by the airflow.

C. Each door has formalist seals at its structure interface which protect the metal interfaces from damage by the airflow.

A. If the scratch does not go through the protective layer, the unit is serviceable.

B. If the nick does not go through the primary surface, the unit is serviceable.

C. If the scratch does not go through the protective surface, the unit is movable.

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. 纠正措施在适航指南中给出，如检查，维修或改装，在适航指南中详细说明，或在另外一个文件中给出，如制造厂家服务通告，该服务通告在适航指南中作为参考。

B. 适航指令描述的纠正措施，比如检查、修理或改装的具体要求，可由适航指令详细给出，或包含在另外一个文件中，如制造厂家服务通告，该服务通告在适航指令中列为参考文件。

C. 适航指令或另一个文件，如制造厂家服务通告可详细给出检查、修理或大修等纠正措施，该服务通告刊登在适航指令中作为参考。

A. If the unit is not modified, its service life will be possibly shorter.

B. Without the modification of the unit, its service life is likely shorter than present.

C. Without the modification, it is possible that the service life of this unit will be shorter than usual.

A. When you try to change a word, make sure that the substitute you choose doesn＇t replace the meaning of the sentence.

B. Make sure that the chosen replacement word will not vary the implication of the sentence if you replace a word.

C. When you replace a word, always make sure that the alternative you select does not change the meaning of the sentence.

A. Replace the No. 1 and No. 2 computers. Then do the test again.

B. Interchange the No. 1 and No. 2 computers. Then do the test again.

C. Repair the No. 1 and No. 2 computers. Then do the test again.

A. The unit of all range distances shall be nautical mile.

B. We measure all range distances in accurate miles.

C. The range of distances shall be calculated in knots.

A. Each manufacturer is expected to reasonably abide by the Specification content and arrangement.

B. Each manufacturer is expected to reasonably agree with the Specification content and arrangement.

C. Each manufacturer is expected to reasonably substitute the Specification content and arrangement.