986.在维修期间不要给飞机加油。

A. There will be no fire.

B. Fire will occur sometimes.

C. There is danger of fire.

A. The introduction should be included in an alphabetical index by subject.

B. An alphabetical index by subject is to be included in the introduction.

C. The introduction includes an alphabetical index subject.

A. 放目录页的桌子必须标识日期但是无需编号。

B. 目录页必须写日期但是不用写数量。

C. 目录页必须注明日期,但无需编号。

A. Adjust the frequency to the value giving in table 1.

B. Adjust the frequencyper the value given in table 1.

C. Adjust the frequency to the value given in table 1.

A. You can not remove the battery.Only an approved service provider can replace it.

B. Do not replace the battery.Only an approved service provider can replace it.

C. Do not replace the battery.Only an approval of a service provider can replace it.

A. 控制组件的出口压力值,否则它不能稳定在正确压力范围。

B. 输出控制组件的压力,该组件不能稳定在正确压力范围。

C. 控制组件出口压力值不能稳定在正确压力范围。

A. Before restarting the engine,make sure to clear the ground from any fuel spills.

B. Remove all spilled fuel from the ground before making the first attempt to start the engine.

C. Ensure that no fuel on the ground is eliminated before proceeding with engine startup.

A. 该系统必须启动以防止反推操作故障。

B. 必须对该系统进行排故以防止反推操作故障。

C. 该系统必须被限动,以防止反推意外工作。

A. Explaining how to obtain the maximum ground miles per gallon through careful flight planning and attention to good operating procedures is the primary content.

B. Display how to achieve the main objective to get the greater ground miles per gallon by careful flight planning and attention to good operating procedures.

C. The principal purpose is to show how to increases the ground miles per gallon as much as possible with careful flight planning and attention to good operating procedures.

A. 系统通过安排相互关联的部件来实现一定的功能。

B. 系统是为执行某一特定功能而安排的相互关联的部件的组合。

C. 系统是将一系列部件安排在一起,为了完成某一特定功能。