1239. The gas expand in the inflation bottle

A. 把钩环挂在升降机上;

B. 用钩环固定住升降机;

C. 用钩环提起升降机;

A. 感应管内的气压使有故障的压力电门处于关闭位置。当该气压在过热或火警状况时,其它2个压力电门关闭。

B. 感应管内的气压保持故障压力电门处于关闭位置。当该气压由于过热或火警状况增加时,其它2个压力电门关闭。

C. 气压在感应管内保持不变,故障压力电门处于关闭位置。其它2个压力电门关闭时,气压出现过热或者火警情况。

A. In STE, a unit started with “topic sentence” is to instruct the main topic.

B. The “topic sentence” starts to tell the readers the topic of the paragraph in SET.

C. In STE, a paragraph starts with a “topic sentence” which tells the reader what the topic of that paragraph is.

A. 为了参考使用,标签分隔符应该按顺序排列。

B. 交错使用制表分隔符将有助于参考。

C. 为了便于参考,隔页签应交错排列。

A. Mechanical devices that drive the engine at a desired RPM.

B. Mechanical devices that drive the generators at a desired RPM.

C. Electromechanical devices that drive the generators at a desired RPM.

A. To include a relocated chapter table of contents is not required if the total chapter has been relocated, while the subsystem relocations should then be identified in the table of contents at the front of the book.

B. On conditional that the total chapter has been relocated, to include a relocated chapter table of contents is not important, then the subsystem relocations should then be identified in the table of contents at the front of the book.

C. If the total chapter has been relocated, it is not forced to contain a relocated chapter table of contents, and the subsystem relocations should then be identified in the table of contents at the front of the book.

A. The forward and aft edges of the windshield has limits, otherwise the bottom and the top edge has not limits.

B. Because of the visibility of the bottom edge of the windshield and the top edge having the bus bar in the way, the forward and aft edges of the windshield will be limited.

C. This will be limited to the forward and aft edges of the windshield because of the bottom edge invisible and the top edge having the bus bar in the way.

A. If the electrolyte leaks, remove it immediately.

B. If the electrolyte spills, remove it immediately.

C. If the material of battery spills, remove it immediately.

A. Those fire-resistant partitions and seals mounted on or about the power package for the purpose of isolating areas subject to fire.

B. Those fire-resistant partitions and seals mounted on or about the power package to isolating areas subject to fire.

C. Those fire-resistant partitions and seals mounted on or below the power package for the purpose of isolating areas subject to fire.

A. It is not permit to work with any uncontrolled technical document for maintenance work.

B. It is not permitted to work with any uncontrolled technical document for maintenance work.

C. It is not allowed to work with any unreliable technical document for maintenance work.